Abū Baṣīr[1] (Baseer, Busir; Arabic: أبو بصير), also known as Utbah ibn Aseed,[2] was a contemporary of Muhammad from the Banu Thaqif tribe.
The two men from Quraysh who were pursuing Abu Basir grabbed him and tied him to their caravan to return him back to Mecca.
To his dismay one escaped alive and the next day reached the Muslim caravan demanding Abu Basir to be handed over.
Eventually whenever a Muslim escaped Mecca, they joined Abu Basir, until they became a big group.
[10] Ibn Hajar al-Asqalani's Fath al-Bari contains one of the more detailed accounts of Abu Basir's life.