‏فضائل الصحابة‏ : Hadeeth No:5989 This hadith has been narrated on the authority of Sa'd with the same chain of transmitters....

‏الإمارة : Hadeeth No:4584 It has been narrated on the authority of 'Abdullah b. Abu Aufa who said: The Companions of the Tree (i e. those who swore fealty under the tree) were one thousand and three hundred, and the people of Aslam tribe were one-eighth of the Muhajirs....