Bukhari

Hadith Commentary:
Those who accepted Islam before all the Ansar and were the very first to pledge allegiance to the Messenger of Allah (sallallahu alayhi wa sallam).

Hadith Commentary:
1.
Al-Bara’ bin Ma’rur radi Allahu anhu was the foster maternal uncle of Jabir radi Allahu anhu. On the night of the Second Aqabah, he was the very first to pledge allegiance to the Messenger of Allah sallallahu alayhi wa sallam. At that time, he was a chief among the Ansar. He passed away one month before the arrival of the Messenger of Allah sallallahu alayhi wa sallam in Madinah Tayyibah.

2.
At the time of this pledge, there were seventy-three men and two women from among the Ansar; they invited the Messenger of Allah sallallahu alayhi wa sallam to come to Madinah Tayyibah. The Messenger of Allah sallallahu alayhi wa sallam appointed twelve of them as leaders (naqib), whose names are as follows:
© As‘ad bin Zurara radi Allahu anhu © Rafi‘ bin Malik radi Allahu anhu © ‘Ubadah bin Samit radi Allahu anhu © Sa‘d bin Rabi‘ radi Allahu anhu © Mundhir bin ‘Amr radi Allahu anhu © ‘Abdullah bin Rawahah radi Allahu anhu © Bara’ bin Ma‘rur radi Allahu anhu © ‘Abdullah bin ‘Amr bin Haram radi Allahu anhu © Sa‘d bin ‘Ubadah radi Allahu anhu © Usayd bin Hudayr radi Allahu anhu © Sa‘d bin Khaythamah radi Allahu anhu © Abu al-Haytham bin Tihan or Rifa‘ah bin ‘Abd al-Mundhir radi Allahu anhu ©.
Among them, Bara’ bin Ma‘rur radi Allahu anhu was the first elder who pledged allegiance that night; this pledge became the foundational stone for the propagation and spread of Islam. We have already mentioned its details at the beginning of the chapter on the virtues of the Ansar.

3.
It should be noted that the name of Jabir radi Allahu anhu’s mother was Naseebah. Bara’ bin Ma‘rur radi Allahu anhu was not his real (biological) uncle, but rather among his foster uncles or among the relatives of his mother. Among the Arabs, all of a mother’s relatives are referred to as “khal” (maternal uncle).