Jundub (may Allah be pleased with him) narrates: I came to Madinah in pursuit of knowledge and entered the mosque, and I saw people gathered around a man. I asked: "Who is this?" The people said: "This is Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him)." When he got up (from the mosque) I followed him. He entered his house, and I knocked on the door. He came out, rebuked me and was harsh with me. (In my grief) I turned towards the Qiblah and said: "O Allah! We complain to You about them (the people of knowledge). We spend our wealth, we wear out our bodies, and we ride our mounts (from far away) in search of knowledge, yet when we meet them, they dislike us." At this he said: "If you give me respite until Friday, I will relate everything I heard from the Messenger of Allah (peace and blessings be upon him), and in this matter I will not fear the blame of any blamer." Then, when Thursday came, I went out early in the morning and saw that the roads were packed with people. I asked: "What has happened to the people today?" They said: "Perhaps you are a stranger here?" I said: "Yes." They said: "The leader of the Muslims, Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him), has passed away."

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that Sayyiduna Umar (may Allah be pleased with him) said: "Sayyiduna Ali (may Allah be pleased with him) is the best judge among us, and Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) is the greatest reciter among us. Yet we leave aside some of the things Ubayy says (regarding the Qur'an)," while Ubayy says: "I took it directly from the Messenger of Allah (peace and blessings be upon him), so I will never abandon it," whereas Allah, the Mighty and Majestic, says: "Whatever verse We abrogate or cause to be forgotten." [Surah al-Baqarah: 106]

Abu Salamah and Muhammad bin Ibrahim al-Taymi narrate that Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) passed by a man who was reciting this verse: "And the first forerunners among the Muhajirun and the Ansar and those who followed them with excellence - Allah is pleased with them and they are pleased with Him" [Surah al-Tawbah: 100] . Sayyiduna Umar (may Allah be pleased with him) stopped there and called him over. When he came, Umar (may Allah be pleased with him) asked: "Who taught you this verse?" He replied: "Ubayy bin Ka'b (may Allah be pleased with him) taught it to me." Umar (may Allah be pleased with him) said: "Take us to him." So they went to him and found him reclining on a cushion, combing the hair of his head. Umar (may Allah be pleased with him) greeted him with salam, and he returned the greeting. Then Umar (may Allah be pleased with him) asked: "O Abu al-Mundhir! Did you teach this man this verse?" He said: "Yes, I received it directly from the Messenger of Allah (peace and blessings be upon him)." Umar (may Allah be pleased with him) asked again: "Did you really learn it from the Messenger of Allah (peace and blessings be upon him)?" He said: "Yes, I received it from the Messenger of Allah (peace and blessings be upon him)." This same question was asked three times, and the third time he said in anger: "Yes, by Allah! Allah revealed it to Jibril, and Jibril revealed it to Muhammad (peace and blessings be upon him), and in this revelation neither al-Khattab nor his son was consulted." Hearing this, Sayyiduna Umar (may Allah be pleased with him) went out with his hands raised, calling out: "Allahu Akbar, Allahu Akbar (Allah is the Greatest, Allah is the Greatest)."

It is narrated from Sayyiduna Sa'id bin al-Musayyab that when Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) came to this verse: "Those who believe and do not mix their faith with wrongdoing" [Surah al-An'am: 82] , he came to Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) and asked: "Who among us is there who has never done wrong?" Ubayy bin Ka'b said: "O Commander of the Faithful! What is meant by it is shirk (associating partners with Allah). Have you not heard the saying of Luqman to his son: 'O my dear son! Do not associate anything with Allah; indeed, associating others with Him is a tremendous wrong.' [Surah Luqman: 13] ?!"

Abu Ubaydah Ma'mar bin al-Muthanna narrates that the lineage of Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) is as follows: Abd al-Rahman bin Awf bin Abd Awf bin al-Harith bin Zuhrah bin Kilab bin Murrah bin Ka'b bin Lu'ayy bin Ghalib bin Fihr bin Malik.

Mus'ab bin Abdullah narrates: Sayyiduna Abd al-Rahman bin Awf bin Abd al-Rahman bin al-Harith bin Zuhrah; his mother and the mother of his brother al-Aswad bin Awf was al-Shifa' bint Awf bin Abd al-Harith bin Zuhrah bin Kilab, who had emigrated before the Conquest of Makkah. Abd al-Rahman's name (previously) was Abd Amr, and the Prophet (peace and blessings be upon him) changed it and named him Abd al-Rahman.

Ya'qub bin Ibrahim bin Sa'd narrates that Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) passed away in the ninth year of the caliphate of Sayyiduna Uthman (may Allah be pleased with him). Sayyiduna Uthman (may Allah be pleased with him) led his funeral prayer, and at that time he was seventy-five years old.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that at the time of the death of Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) he said: "You attained its (this world's) purity and went ahead (by departing) before its turbidity."

Khalifah bin Khayyat mentioned the same lineage stated above and added that Abd al-Rahman's kunyah was Abu Muhammad, and in the Jahiliyyah his name was Abd al-Ka'bah, and the Messenger of Allah (peace and blessings be upon him) changed it and named him Abd al-Rahman.

It is narrated from Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) that he said: "In the Jahiliyyah my name was Abd Amr, and the Messenger of Allah (peace and blessings be upon him) named me Abd al-Rahman." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.