It is narrated from Mus'ab bin Abdullah al-Zubayri that from Banu Salimah, a branch of Banu Jusham bin al-Khazraj, came Sayyiduna Mu'adh, Mu'awwidh and Khallad (may Allah be pleased with them), the sons of Amr bin al-Jamuh bin Zayd bin Haram bin Ka'b. He (Mu'adh) took part in the Battle of Badr and had a share in killing Abu Jahl; in that battle Ikrimah bin Abi Jahl cut off his hand. He lived until the time of Sayyiduna Uthman (may Allah be pleased with him). His mother was Hind bint Amr bin Tha'labah bin Haram, and his paternal uncle was Sayyiduna Jabir bin Abdullah al-Ansari (may Allah be pleased with him), who was present at the Pledge of Aqabah and the Battle of Badr.

It is narrated from Khalifah bin Khayyat that Sayyiduna Mu'adh bin Amr bin al-Jamuh (may Allah be pleased with him) was wounded on the day of Badr and remained continuously bedridden (ill) until the time of Sayyiduna Uthman (may Allah be pleased with him). Then he passed away in Madinah in the year 24 AH; Sayyiduna Uthman bin Affan (may Allah be pleased with him) led his funeral prayer, and he was buried in Jannat al-Baqi'.

It is narrated from Urwah bin al-Zubayr, in his listing of those from Banu Haram bin Ka'b who gave the pledge of allegiance to the Messenger of Allah (peace and blessings be upon him) at the Pledge of Aqabah, that Sayyiduna Mu'adh bin Amr bin al-Jamuh (may Allah be pleased with him) was among them.