Umayr bin Ishaq narrates from Sayyiduna al-Miqdad bin al-Aswad (may Allah be pleased with him) that he said: The Messenger of Allah (peace and blessings be upon him) sent me on a mission (as a commander). When I returned, he (peace and blessings be upon him) asked me: "How did you find yourself?" I said: "(Through the intoxication of command) my state became such that I began to consider my companions as my slaves and servants. By Allah! After this I will never become a commander even over two men." This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it. An account of the virtues of Sayyiduna Abu Abs bin Jabr al-Ansari al-Khazraji (may Allah be pleased with him).

It is narrated from Ibn Ishaq, regarding the names of those of Banu al-Harith bin al-Khazraj bin Amr bin Malik bin Aws who took part in the Battle of Badr with the Messenger of Allah (peace and blessings be upon him), that among them was Abu Abs bin Jabr bin Amr bin Zayd bin Jusham bin Harithah (may Allah be pleased with him).

It is narrated from Urwah that he said: Abu Abs bin Jabr bin Amr bin Zayd bin Jusham bin Harithah (may Allah be pleased with him) took part in the Battle of Badr with the Messenger of Allah (peace and blessings be upon him).

Imam Ahmad bin Hanbal said: I read before Ya'qub the names of those who took part in the Battle of Badr, among which was the name of Abu Abs bin Jabr (may Allah be pleased with him), and his actual name was Abd al-Rahman bin Jabr.

Muhammad bin Abdullah bin Numayr states that Abu Abs Abdullah bin Jabr bin Amr bin Zayd al-Ansari (may Allah be pleased with him) and Ka'b al-Ahbar passed away in the year thirty-three (33) AH.