Kitab At-Tabaqat Al-Kabir by Abu ‘Abdullah
Muhammad ibn Sa‘d is one of the most important and earliest surviving
collections of biographical details of the early Muslims, spanning just
over the first two centuries of Islam.The scope of the work of Ibn Sa‘d
covers the time of the Rashidun Khalifs, the Umayyads, and the
‘Abbasids. This third volume of the Tabaqat (Volume III) deals with the
Companions who were present at the Battle of Badr and with the Leaders
of the Ansar who participated in the Pledge of ‘Aqaba.