Mu’adh Ibn Jabal RA

Mu’adh Ibn Jabal RA

The Most Learned of Halal and Haram
Muadh ibn Jabal RA was a young man growing up in Yathrib (Madinah) as the light of guidance and truth began to spread over the Arabian Peninsula. Muadh ibn Jabal RA was a handsome and imposing character with black eyes and curly hair and immediately impressed whoever he met. Muadh ibn Jabal RA was already distinguished for the sharpness of his intelligence among young men of his own age.

The young Muadh ibn Jabal RA became a Muslim at the hands of Musab ibn Umayr, the daie (missionary) whom Rasulullah had sent to Yathrib before the hijrah. Muadh ibn Jabal RA was among the seventy-two Madinan who journeyed to Makkah, one year before the hijrah, and met Rasulullah at his house and later again in the valley of Mina, outside Makkah, at Aqabah. Here the famous second Aqabah Pledge was made at which the new Muslims of Yathrib, including some women, vowed to support and defend Rasulullah at any cost. Muadh ibn Jabal RA was among those who enthusiastically clasped the hands of the blessed Rasulullah then and pledged allegiance to him.

Among the seventy-man delegation of the Ansar who took the oath of allegiance to Rasulullah in the Second Allegiance of 'Aqabah sat a young man with a bright face, graceful eyes, and a radiant smile. When Muadh ibn Jabal RA was silent, he attracted attention with his profound peacefulness and devoutness. On the other hand, when he talked, he held his people spell-bound. This young man was Muadh ibn Jabal RA. Muadh ibn Jabal RA belonged to the Ansar, and he was among the foremost believers who gave the second oath of allegiance to Rasulullah . Naturally, a man of such precedence, faith, and certainty would not miss for the world a battle or an expedition. Muadh ibn Jabal RA uppermost quality was his knowledge of fiqh (jurisprudence)- the practical aspect of Muhammad's message. He reached the apex in knowledge and fiqh, to the extent that made Rasulullah say, "The most learned man of my nation in halal and haram is Mu'adh Ibn Jabal."

Muadh ibn Jabal RA resembled 'Umar Ibn Al-Khattab RA in his enlightenment, courage, and intelligence.

When Rasulullah sent him to Yemen, he asked him, "How will you give a judgment or settle a dispute?"

Muadh ibn Jabal RA answered; "I will refer to the Qur’an."

Rasulullah then asked, "What will you do if you do not find the decree you are looking for in the Qur’an?"

Muadh ibn Jabal RA answered, "I will refer to the Prophet's Sunnah."

Rasulullah asked, "But what will you do if you do not find a decree even in the Sunnah?"

Muadh ibn Jabal RA readily answered, "I will be judge between mankind by resorting to juristic reasoning (ijtihaad) to the best of my power."

Now, Muadh ibn Jabal RA's staunch commitment to Allah's Book and the Sunnah Rasulullah does not mean that he closed his mind to the countless and endless hidden or equivocal facts that await someone to unravel and adjudicate.

As soon as Muadh ibn Jabal RA returned to Madinah from Makkah, he and a few others of his age formed a group to remove and destroy idols from the houses of the mushrikun in Yathrib. One of the effects of this campaign was that a prominent man of the city, Amr ibn al-Jamuh, became a Muslim.

When the noble Rasulullah reached Madinah, Muadh ibn Jabal RA stayed in his company as much as possible. Muadh ibn Jabal RA studied the Quran and the laws of Islam until he became one of the well-versed of all the companions in the religion of Islam.
Perhaps both Muadh ibn Jabal RA's ability in juristic reasoning and the courageous usage of his intelligence enabled him to master the fiqh, excelling all other scholars. Rasulullah justifiably described Muadh ibn Jabal RA as "the most learned man of my nation in halal and haram."

History portrays him as a man of remarkably enlightened, resolute, and decisive mind. For instance, 'Aaez Allah Ibn 'Abd Allah narrated that one day he entered the mosque with the Companions of Rasulullah at the dawn of 'Umar Ibn Al Khattab  caliphate. Then he sat among more than thirty men. Let us hear him narrate the story:
"I sat with a group of more than thirty men. They were recalling a hadith of Rasulullah . In this ring sat a dark, swarthy young man who had a sweet voice and a radiant face. Whenever they disputed about a hidden or ambiguous meaning in the hadith, they at once sought his legal instruction or judgment. He seldom, if ever, spoke unless he was asked. When their meeting was over, I approached him and asked him, "Who are you, 0 Allah's Slave?"  He answered, "I am Mu'adh Ibn Jabal." So I instantly felt close to him.
Also, Shahr Ibn Hawshab said, "Whenever Muadh ibn Jabal RA was present when the Companions of Rasulullah were holding a meeting; they looked at him with reverence."

Saidina Umar Ibn Al-Khattab RA, the Commander of the Faithful, often consulted him. It seemed that Mu'adh ibn Jabal RA had a highly disciplined mind and a captivating and convincing logic that moved peacefully and knowledgeably. When we look at Muadh ibn Jabal RA historical background, we will always see him at the center of attention. He always sat there surrounded by people. Muadh ibn Jabal RA always maintained a discrete silence that was only broken whenever people were anxious to hear his judgement and whenever they were in dispute. When he spoke he looked, as one of his contemporaries described, "as if light and pearls were emanating from his mouth rather than speech." Muadh ibn Jabal RA reached his high rank in knowledge and reverence when Rasulullah was alive and maintained it after his death, notwithstanding his youth, for Muadh ibn Jabal RA died during Saidina Umar Ibn Al Khattab's caliphate at the age of thirty-three years.

Muadh ibn Jabal RA was generous, magnanimous, well-mannered, and good-natured. If anyone asked him for money, he would readily and gladly give it to him. Muadh ibn Jabal RA generosity made him spend all his money on charity and aid. When Rasulullah , Muadh ibn Jabal RA was still in Yemen, where Rasulullah had sent him with the task of teaching Muslims their religion and fiqh.

When Muadh ibn Jabal RA returned from Yemen during Saidina Abu Bakr As Siddique RA caliphate, Saidina Umar Ibn Al Khattab RA was informed that Mu'adh Ibn Jabal RA become wealthy, and he suggested to Saidina Abu Bakr As Siddique RA that the community should have half of Mu’adh’s wealth. "Saidina Umar Ibn Khattab RA did not waste much time as he rushed to Mu'adh's house and told him about what he and Saidina Abu Bakr As Siddique had agreed on. Muadh ibn Jabal RA was an honest and trustworthy man. The fact that he had made a fortune did not make him vulnerable to suspicion or sin; therefore, he turned down "Umar's suggestion and refuted his viewpoint. Finally, 'Umar left him. The next day, Muadh ibn Jabal RA hurried towards 'Umar's house and no sooner had he laid his eyes on him than he hugged him. His tears flowed as he said, “Last night, I saw in my dream that I was crossing deep water. I nearly drowned were it not for your help, 'Umar." Afterwards, they both went to Abu Bakr's presence where Mu'aadh asked him to take half his money, but Abu Bakr said," No, I will take nothing from you." "Umar glanced at Muadh ibn Jabal RA and said, "Now it is halal and blessed."

First, the pious Abu Bakr would not take from Muadh ibn Jabal RA one penny unless he was absolutely positive that he had earned it in a lawful halal way. Second, Umar was not trying to accuse or cast suspicion on Muadh ibn Jabal RA. In the final analysis, this epitomizes the era of ideals which was filled with people who were in perpetual competition to climb their way up to the apex of perfection allowed to human beings. Thus some of them soared up to the sky with their good deeds. Some were foremost and the rest followed a middle course. Yet, all of them were travelers on a caravan of goodness.

After a while, Muadh ibn Jabal RA immigrated to Syria, where he lived among its people and the expatriates as a teacher and a scholar of fiqh. When Abu Ubaidah Ibn Al Jarrah RA, the governor of Syria and a close friend of Muadh ibn Jabal RA, died, the Commander of the Faithful 'Umar Ibn Al-Khattab assigned Muadh ibn Jabal RA to take his place as a ruler. Only a few months had elapsed after his taking over when he died, humble and repentant to Allah. 'Umar RA used to say, "If I were to grant Muadh ibn Jabal RA succession and Allah asked me, 'Why did you make him your successor?' I would readily answer, 'I heard Rasulullah  say that when those who have knowledge stand before Almighty Allah, Muadh ibn Jabal RA will be among them.'"

The succession that 'Umar meant here was not merely over a country or a governorship but overall the Muslim lands. When 'Umar was asked before his death, "If you choose your successor now, we will give him our allegiance," he answered, "If Muadh ibn Jabal RA were alive and I made him my successor to the caliphate, then I died and met Allah Who asked me, 'Whom did you assign to rule Muhammad's nation?' I would answer, 'I assigned Muadh ibn Jabal RA to rule it after I heard Rasulullah  say Muadh ibn Jabal is the Imam of those who have knowledge of Judgement Day.”

Rasulullah  said one day, "O Mu'adh, by Allah I love you dearly, so do not forget to recite after every prayer, 'Allah help me in remembering You, in offering thanks to You, and in worshiping You properly.'"

Indeed, Rasulullah  supplicated Allah SWT to help him to remember Him. Rasulullah  persevered in stressing this great fact that tells people that authority belongs to Allah, He has the power over all, and there is no power or any might except with His permission, for He is Most High and Most Great.

Definitely, Muadh ibn Jabal RA had learned and fully grasped this fact. Muadh ibn Jabal RA did his utmost to cherish and apply this fundamental basis in his life from that moment onwards.

The Tomb of Mu'adh Ibn Jabal in Jordan
One day, Rasulullah ﷺ ran into him so he asked him, "How are you this morning Mu'adh?
Muadh ibn Jabal RA answered;
 "This morning I woke up as a true believer."
Rasulullah said;
"Every truth has its manifestations, so what are the manifestations of your true belief?"
Muadh ibn Jabal RA readily answered;
"I have never woken up without believing that I might die before nightfall. I have never slept without believing that I might die before the morning and have never taken a step without believing that I might die before taking the next. It always seems to me that I can see each nation humbled to its knees and each nation called to its record of deeds. It always seems to me that I can see the dwellers of Paradise, wherein are delighted everlasting, and the dwellers of Hell, wherein they are in disgracing torment."
Rasulullah commented;

 "Now you know, so stick to the truth as long as you live."

Indeed, Muadh ibn Jabal RA had submitted him and his destiny to Allah, for Allah was all that mattered to him. It was just that Ibn Mas'ud described him as "an Ummah, a leader having all the good and righteous qualities, obedient to Allah and Hanifah, who worshiped none but Allah. We used to liken him to Ibrahim (Abraham) (PBUH)."

Wherever Muadh ibn Jabal RA went, people would refer to him for legal judgments on matters over which they differed. This is not strange since he was brought up in the school of Rasulullah ﷺ himself and learned as much as he could from him. Muadh ibn Jabal RA was the best pupil of the best teacher. Muadh ibn Jabal RA knowledge bore the stamp of authenticity. The best certificate that he could have received came from Rasulullah himself when he said: "The most knowledgeable of my Ummah in matters of Halal and haram is Muadh ibn Jabal."

One of the greatest of Muadh ibn Jabal RA contributions to the Ummah of Rasulullah was that he was one of the group of six who collected the Quran during the lifetime of Rasulullah . Whenever a group of companions met and Muadh ibn Jabal RA was among them, they would look at him with awe and respect on account of his knowledge. Rasulullah and his two Khalifah after him placed this unique gift and power in the service of Islam.

On another concise version about the life and demise of Muadh ibn Jabal RA.

After the liberation of Makkah, the Quraysh became Muslims en masse. Rasulullah immediately saw the need of the new Muslims for teachers to instruct them in the fundamentals of Islam and to make them truly understand the spirit and letter of its laws. Rasulullah appointed Attab ibn Usay RA as his deputy in Makkah and Rasulullah asked Muadh ibn Jabal RA to stay with him and teach people the Quran and instruct them in the religion.

Sometime after Rasulullah had returned to Madinah, messengers of the kings of Yemen came to him announcing that they and the people of Yemen had become Muslims. They requested that some teachers should be with them to teach Islam to the people. For this task, Rasulullah  commissioned a group of competent du’at (missionaries) and made Muadh ibn Jabal RA their Amir. He then put the following question to Muadh:

"According to what will you judge?"

"According to the Book of God," replied Muadh ibn Jabal RA.

"And if you find nothing therein?"

"According to the Sunnah of the Prophet of God."

"And if you find nothing therein?"

"Then I will exert myself (exercise ijtihad) to form my own judgment."

Rasulullah was pleased with this reply and said: "Praise be to God Who has guided the messenger of the Prophet to that which pleases the Prophet."

Rasulullah personally bade farewell to this mission of guidance and light and walked for some distance alongside Muadh ibn Jabal RA as he rode out of the city. Finally, he said to him:
"O Muadh, perhaps you shall not meet me again after this year. Perhaps when you return you shall see only my mosque and my grave." Muadh ibn Jabal RA wept. Those with him wept too. A feeling of sadness and desolation overtook him as he parted from his beloved Rasulullah .
Rasulullah premonition was correct. The eyes of Muadh ibn Jabal RA never beheld Rasulullah after that moment. Rasulullah demised before Muadh ibn Jabal RA returned from the Yemen. There is no doubt that Muadh ibn Jabal RA wept when he returned to Madinah and found there was no longer the blessed company of Rasulullah .

During the caliphate of Umar, Muadh ibn Jabal RA was sent to the Banu Kilab to apportion their stipends and to distribute the sad aq ah of their richer folk among the poor. When he had done his duty, he returned to his wife with his saddle blanket around his neck, empty handed, and she asked him:

"Where are the gifts which commissioners return with for their families?" "I had an alert Supervisor who was checking over me," he replied. "You were a trusted person with Rasulullah and with Saidina Abu Bakr As-Siddique RA. Then Saidina Umar Ibn Al-Khattab RA came and he sent a supervisor with you to check on you!' she exclaimed. She went on to talk about this to the women of Saidina Umar's household and complained to them about it. The complaint eventually reached Saidina Umar Ibn Al-Khattab RA, so he summoned Muadh ibn Jabal RA and said:

"Did I send a supervisor with you to check on you?"
"No, Amir al-Muminin," he said, "But that was the only reason I could find to give her." Saidina Umar Ibn Al-Khattab RA laughed and then gave him a gift, saying, "I hope this pleases you."

Also during the caliphate of Saidina Umar Ibn Al-Khattab RA, the governor of Syria, Yazid ibn Abi Sufyan sent a message saying:

"O Amir al-Muminin! The people of Syria are many. They fill the towns. They need people to teach them the Quran and instruct them in the religion."

Saidina Umar Ibn Al-Khattab RA thereupon summoned five persons who had collected the Quran in the lifetime of Rasulullah . They were Muadh ibn Jabal RA, Ubadah ibn Aṣ-Ṣāmit RA, Abu Ayub al-Ansari RA, Ubayy ibn Kab RA and Abu Ad-Darda RA.
He said to them:
"Your brothers in Syria have asked me to help them by sending those who can teach them the Quran and instruct them in the religion. Please appoint three among you for this task and may Allah bless you. I can select three of you myself if you do not want to put the matter to the vote."

"Why should we vote?" they asked. "Abu Ayub is quite old and Ubayy is a sick man. That leaves three of us." "All three of you go to Homs first of all. If you are satisfied with the condition of the people there, one of you should stay there, another should go to Damascus and the other to Palestine."

So it was that Ubadah ibn as-Samit RA was left at Homs, Abu ad-Darda RA went to Damascus and Muadh ibn Jabal RA went to Palestine. There Muadh ibn Jabal RA fell ill with an infectious disease. As he was near to death, he turned in the direction of the Kabah and repeated this refrain:

"Welcome Death, Welcome. A visitor has come after a long absence . . ." And looking up to heaven, he said: "O Lord, You know that I did not desire the world and to prolong my stay in it . . . O Lord, accept my soul with goodness as you would accept a believing soul..."

Muadh ibn Jabal RA then passed away, far from his family and his clan, a daiy in the service of Allah and a Muhajir in His path.

Muadh ibn Jabal RA advocated knowledge and the remembrance of Allah. Moreover, Muadh ibn Jabal RA invited mankind to seek the useful and true knowledge saying:

 "I warn you against the deviation of wise men. You will know the truth when you see it, for it has a distinctive light!"

Muadh ibn Jabal RA believed that worship was an end and a means to reach justice.
One day a Muslim asked him;

"Teach me."
Muadh ibn Jabal RA asked him:
 "Will you obey me if I teach you?"
The man answered;
 "I will not disobey you in anything."
Muadh ibn Jabal RA said then;

 "Fast, then break your fast. Pray during the night but you must get some sleep. Earn what is halal and what is rightfully yours and do not earn sin . Die as a true Muslim. Finally, I warn you against the supplication of those who have been wronged or oppressed."

Muadh ibn Jabal RA believed that education meant knowledge and practice; therefore, he said:

 "Learn whatever you like to learn, yet Allah SWT will not make your learning worthwhile unless you practice what you have learned.”

Muadh ibn Jabal RA believed that belief and remembrance of Allah SWT meant the perpetual calling to mind of His greatness and the perpetual calling of oneself to account for deeds before Allah does so.

Al-Aswad Ibn Hilal RA reported. As we were walking with Muadh ibn Jabal RA one day, he said;
 "Let us sit down for a while to meditate on Allah."

Perhaps the reason behind his discrete silence was his unremitting meditation and contemplation.

Likewise, Muadh ibn Jabal RA once telling Rasulullah that he never took a step without believing that he might die before taking the next was due to his engrossment in the remembrance of Allah and in calling himself to account for his deeds.

At the end, death summoned Muadh ibn Jabal RA. It was time to meet Allah. When the stupor of death creeps upon someone, his subconscious takes the reins and spurs the tongue - if it is able to - to disclose the reality of all mankind in concise words that summarize his life story. In those blessed moments, Muadh ibn Jabal RA faintly uttered great words that revealed a great believer, for he gazed up into the sky and humbly supplicated Allah, the Most Merciful, saying;

 "Allah I used to fear You but now I implore You. Allah, You know that I did not devote my life to travel in the lands or to earn money or property but rather consecrated it to knowledge, faith and obedience, notwithstanding intense heat or hardships."

Muadh ibn Jabal RA stretched his hand as if he were shaking death and went into a coma. Muadh ibn Jabal RA last words were, "O Death, welcome! You are a long-awaited beloved."
At last Muadh ibn Jabal RA ascended to Allah's Paradise.

Selected Hadiths Narrated by and Attributed to Mu’adh Ibn Jabal RA

Found In: Imam Malik's Muwatta Chapter No: 47, Good Character
Hadith no: 1 
Narrated: Malik
Yahya related to me from Malik that Muadh Ibn Jabal said, "The last advice Rasulullah , gave me when I put my foot in the stirrup was that he said, 'Make your chaRActer good for the people, Muadh Ibn Jabal!' "
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Found In: Sunan Ibn Majah Chapter No: 2, The Chapters of Purification and its Sunnah
Hadith no: 328
Narrated: Abu Said Al-Himyari
That Muadh bin Jabal used to narrate something that the Companions of the Messenger of Allah (saw) had not heard, and he used to keep quiet about what they had heard. News of this report reached Abdullah bin Amr, and he said: “By Allah, I never heard Rasulullah say this, and Muadh will put you into difficulty with regard to relieving yourself.” News of that reached Muadh, so he met with him (Abdullah). Muadh said: “O Abdullah! Denying a Hadith from Rasulullah is hypocrisy, and its sin is upon the one who said it (if it is not true). I did indeed hear the Rasulullah say: ‘Beware of the three things which provoke curses: Relieving oneself in watering places, in places of shade and in the middle of the street.’” (Daif)
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Found In: Sunan Ibn Majah Chapter No: 11, The Chapters on Marriage
Hadith no: 1853
Narrated: Abdullah bin Abu Awfa
“When Muadh bin Jabal came from Sham, he prostrated to Rasulullah who said: 'What is this, O Muadh?'  He said: 'I went to Sham and saw them prostrating their bishops and patricians and I wanted to do that for you.' Rasulullah said: 'Do not do that. If I were to command anyone to prostrate to anyone other than Allah, I would have commanded women to prostrate to their husbands. By the one in who hand is the soul of Muhammad! No woman can fulfill her duty towards Allah until she fulfills her duty towards her husband. If he asks her (for intimacy) even if she is on her camel saddle, she should not refuse.' "
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Found In: Sunan Ibn Majah Chapter No: 7, The Chapters of Establishing the Prayer and the Sunnah Regarding Them
Hadith no: 836
Narrated: Jabir
That Muadh bin Jabal led his companions for the Isha and he made the prayer too long for them. Rasulullah said: “Recite ‘By the sun and its brightness,’[Al-Shams (91)] ‘Glorify the Name of your Lord, the Most High,’ [Al-Ala (87)] ‘By the night as it envelops,’ [Al-Lail (92)] or, ‘Read! In the Name of your Lord Who has created.’” [Al-Alaq (96)] (Sahih)
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Found In: Imam Malik's Muwatta Chapter No: 9, Shortening the Prayer
Hadith no: 2
Narrated: Muadh bin Jabal
Yahya related to me from Malik from Abu'z-Zubayr al-Makki from Abu't-Tufayl Amir Ibn Wathila that Muadh Ibn Jabal told him that they went out with the Messenger of Allah, may Allah bless him and grant him peace, in the year of Tabuk, and the Messenger of Allah, may Allah bless him and grant him peace, joined Dhur with Asr and Maghrib with Isha. Muadh said, "One day he delayed the prayer, and then came out and prayed Dhur and Asr together. Then he said, 'Tomorrow you will come, insha' Allah, to the spring of Tabuk. But you will not get there until well into the morning. No one who arrives should touch any of its water until I come.' We came to it and two men had got to it before us and the spring was dripping with a little water. The Messenger of Allah, may Allah bless him and grant him peace, asked them, 'Have you touched any of its water?' They said, 'Yes.' The Messenger of Allah, May Allah bless him and grant him peace, reviled them and said what Allah wished him to say. Then they took water with their hands from the spring little by little until it had been collected in something. Then the Messenger of Allah, may Allah bless him and grant him peace, washed his face and hands in it. Then he put it back into the spring and the spring flowed with an abundance of water and the people drew water from it. The Messenger of Allah, May Allah bless him and grant him peace, said, 'If you live long enough, Muadh, you will soon see this place filled with gardens.' "
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Found In: Sunan An-Nasai Chapter No: 10, The Book of Leading the Prayer (Al-Imamah)
Hadith no: 832
Narrated: Jabir
“A man from the Ansar came when the Iqamah for prayer had been said. He entered the Masjid and prayed behind Muadh, and he (Muadh) made the prayer lengthy. The man went away and prayed in a corner of the Masjid, and then he left. When Muadh finished praying, it was said to him that so-and-so had done such and such. Muadh said: ‘Tomorrow I will mention that to Rasulullah ’ So Muadh came to Rasulullah and told him about that. Rasulullah sent for him and asked him: ‘What made you do what you did?’ He said: ‘O Rasulullah, I had been working on my camel to bring water all day, and when I came the Iqamah for prayer had already been said, so I entered the Masjid and joined him in the prayer, then he recited such and such a Surah and made it lengthy, so I went away and prayed in a corner of the Masjid.’ Rasulullah said: ‘Do you want to cause hardship to the people, O Muadh; do you want to cause hardship to the people, O Muadh; do you want to cause hardship to the people, O Muadh?’” (Sahih)
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Found In: Sunan An-Nasai Chapter No: 1, The Book of Purification
Hadith no: 4
Narrated: Abu Burdah
That Abu Musa said: “I came to Rasulullah when he was using the Siwak and with me were two men of the Asharis - one on my right and the other on my left - who were seeking to be appointed as officials. I said: 'By the One Who sent you as a Prophet with the truth, they did not tell me why they wanted to come with me and I did not realize that they were seeking to be appointed as officials.' And I could see his Siwak beneath his lip, then it slipped and he said: 'We do not' - or; 'We will never appoint as an official anyone who seeks that. Rather you should go.'” So he sent him (Abu Musa) to Yemen, then he sent Muadh bin Jabal to go after him - may Allah be pleased with them. (Sahih)
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Found In: Sunan An-Nasai Chapter No: 6, The Book of the Times (of Prayer)
Hadith no: 588
Narrated: Abu At-Tufail Amir bin Wathilah
That Muadh bin Jabal told him that they went out with Rasulullah in the year of Tabuk, and Rasulullah was joining Zuhr and Asr, and Maghrib and Isha. He delayed the prayer one day then he went out and prayed Zuhr and Asr together, then he went in and came out again and prayed Maghrib and Isha. (Sahih)
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Found In: Sunan Ibn Majah Chapter No: 1, The Book of the Sunnah
Hadith no: 154
Narrated: Anas bin Malik
Rasulullah said: “The most merciful of my Ummah towards my Ummah is Abu Bakr; the one who adheres most sternly to the religion of Allah is Umar; the most sincere of them in shyness and modesty is Uthman; the best judge is Ali bin Abu Talib; the best in reciting the Book of Allah is Ubayy bin Kab; the most knowledgeable of what is lawful and what is unlawful is Muadh bin Jabal; and the most knowledgeable of the rules of inheritance (Faraid) is Zaid bin Thabit. And every nation has a trustworthy guardian, and the trustworthy guardian of this Ummah is Abu Ubaidah bin Jarrah.” (Sahih)
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Found In: Sahih Muslim Chapter No: 1, Faith (Kitab Al Iman)
Hadith no: 46
Narrated: Muadh bin Jabal
I was riding behind Rasulullah and there was nothing between him and me but the rear part of the saddle, when he said: Mu'adh b. Jabal: To which I replied: At your beck and call, and at your pleasure, Messenger of Allah! He moved along for a few minutes, when again he said: Mu'adh b. Jabal: To which I replied: At your beck and call, and at your pleasure, Messenger of Allah! He then again moved along for a few minutes and said: Mu'adh b. Jabal: To which I replied. At your beck and call, and at your pleasure. Rasulullah said: Do you know what right has Allah upon His servants? I said: Allah and His Messenger know best. Rasulullah said: Verily the right of Allah over His servants is that they should worship Him, not associating anything with Him. Rasulullah with Mu'adh behind him, moved along for a few minutes and said: Mu'adh b. Jabal: To which I replied: At your beck and call, and at your pleasure, Messenger of Allah! Rasulullah said: Do you know what rights have servants upon Allah in case they do it (i. e. they worship Allah without associating anything with Him)? I (Mu'adh b. Jabal) replied: Allah and His Messenger know best. (Upon this) Rasulullah remarked: That He would not torment them (with the fire of Hell).
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Found In: Imam Malik's Muwatta Chapter No: 21, Jihad
Hadith no: 43
Yahya related to me from Malik from Yahya Ibn Said that Muadh Ibn Jabal said, "There are two military expeditions. There is one military expedition in which valuables are spent, the contributor is willing, the authorities are obeyed, and corruption is avoided. That military expedition is all good. There is a military expedition in which valuables are not spent, the contributor is not willing, the authorities are not obeyed, and corruption is not avoided. The one who fights in that military expedition does not return with reward."
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Found In: Sahih Bukhari Chapter No: 23, Funerals (Al-Janaaiz)
Hadith no: 373 
Narrated: Usamah bin Zaid RA
The daughter of Rasulullah sent (a messenger) to Rasulullah requesting him to come as her child was dying (or was gasping), but Rasulullah returned the messenger and told him to convey his greeting to her and say: "Whatever Allah takes is for Him and whatever He gives, is for Him, and everything with Him has a limited fixed term (in this world) and so she should be patient and hope for Allah's reward." She again sent for him, swearing that he should come. Rasulullah got up, and so did Sad bin 'Ubadah RA, Muadh bin Jabal RA, Ubai bin Ka'b RA, Zaid bin Thabit RA and some other men. The child was brought to Rasulullah while his breath was disturbed in his chest (the sub-narrator thinks that Usamah added: ) as if it was a leather water-skin. On that the eyes of Rasulullah started shedding tears. Sad RA said, "O Allah's Apostle! What is this?" Rasulullah replied, "It is mercy which Allah has lodged in the hearts of His slaves, and Allah is merciful only to those of His slaves who are merciful (to others).
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Selected Video about Saidina Mu'adh Ibn Jabal RA

Video 1-  English
Video 2 - English
Video 3 - German 1
Video 4 - German 2
Video 5 - German 3
Video 6 - German 4
Video 7 - English