QSI: Seerah of Prophet Muhammad 51 - Massacres of Al Raji & Bir Ma'una

Immediately after the Uhud battle, a group of men from Adal and al-Qarah came to Muhammad; requested him to send with them a few instructors to teach Islam to their people who had embraced Islam. Muhammad agreed to this, and promptly sent six men (or ten men as per Ibn Sa’d[3]) with them. However, those emissaries were sent by the Banu Lahyan, who wanted to avenge the killing of their chief, Sufyan bin Khalid al-Hudhayli in the Expedition of Abdullah Ibn Unais. Among the six missionaries selected by Muhammad was Asim bin Thabit,who was appointed the head of this delegation.