It is narrated from Urwah bin al-Zubayr that among the names of those from the Ansar who took part in the Battle of Badr was Abu al-Yasar Ka'b bin Amr (may Allah be pleased with him).

It is narrated from Mus'ab bin Abdullah al-Zubayri that the name of Abu al-Yasar (may Allah be pleased with him) was Ka'b bin Amr. He belonged to Banu Salimah. He passed away in the year 55 AH in Madinah, and he was a short, stocky man with a large belly.

It is narrated from Muhammad bin Umar (al-Waqidi) that the name of Abu al-Yasar (may Allah be pleased with him) is Ka'b bin Amr bin Abbad bin Amr bin Sawad. According to all the reports, he took part in the Pledge of al-Aqabah. At the time of the Battle of Badr he was twenty years old, and he took part in the Battles of Uhud and the Trench (Khandaq) and in all the campaigns with the Messenger of Allah (peace and blessings be upon him). He was a short, stocky man with a large belly. He passed away in the year 55 AH in Madinah.

It is narrated from Abu al-Yasar Ka'b bin Amr (may Allah be pleased with him) that he said: I came to the Prophet (peace and blessings be upon him) while he (peace and blessings be upon him) was taking the pledge of allegiance from people. I said: "O Messenger of Allah, stretch out your hand so that I may pledge allegiance to you, and set conditions upon me, for you know the conditions best." He (peace and blessings be upon him) said: "I take your pledge that you will worship Allah alone, establish the prayer, pay the zakah, be sincere in goodwill to the Muslims, and separate yourself from the polytheist." Mention of the virtues of Sayyiduna Mu'attib bin al-Hamra' al-Makhzumi (may Allah be pleased with him).

It is narrated from Urwah bin al-Zubayr that among those who took part in the Battle of Badr with the Messenger of Allah (peace and blessings be upon him) was Sayyiduna Mu'attib bin Awf (may Allah be pleased with him).

It is narrated from Muhammad bin Umar (al-Waqidi) that Sayyiduna Mu'attib bin Awf bin Amir bin al-Fadl bin Afif (may Allah be pleased with him), who is called Mu'attib bin al-Hamra' and whose kunyah was Abu Awf, was an ally of Banu Makhzum and was among those who made the second emigration to Abyssinia. It is narrated that the Messenger of Allah (peace and blessings be upon him) established brotherhood (mu'akhat) between Mu'attib bin al-Hamra' and Tha'labah bin Hatib. He took part in the Battles of Badr, Uhud and the Trench (Khandaq) and in all the campaigns with the Messenger of Allah (peace and blessings be upon him), and he passed away in the year 57 AH, when he was seventy-eight years old.

Mention of the virtues of Sayyiduna Shaddad bin Aws al-Ansari (may Allah be pleased with him). It is narrated from Ibrahim bin al-Mundhir that Shaddad bin Aws bin Thabit bin al-Mundhir bin Haram passed away in the year 58 AH. His kunyah was Abu Ya'la; he had settled in Palestine, and at the time of his death he was seventy-five years old.

It is narrated from Abu Ma'shar that Sayyiduna Abu Hurayrah and Sayyiduna Shaddad bin Aws (may Allah be pleased with them both) passed away in the year 58 AH.

Mention of the virtues of Sayyiduna Abu Hurayrah al-Dawsi (may Allah be pleased with him); there is much disagreement about his name and the name of his father. It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that he said: "In the Days of Ignorance my name was Abd Shams bin Sakhr; then, upon accepting Islam, I was named Abd al-Rahman. I came to be called by the kunyah Abu Hurayrah because I used to graze my family's goats, and I found the kittens of a wild cat, so I put them in my sleeve. When I returned and the sounds of the kittens were heard from my lap, the people asked: 'O Abd Shams, what is this?' I said: 'These are kittens that I found.' They said: 'Then you are Abu Hurayrah.' So after that this kunyah stuck to me." Ibn Ishaq says: Sayyiduna Abu Hurayrah (may Allah be pleased with him) held a highly honoured position in the tribe of Daws.

It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) used to call me "Abu Hirr", whereas people in general used to call me "Abu Hurayrah".