Sahih Muslim #1857a · The Book on Government

Sahih MuslimAbdullah bin Abu Aufa
Sahih Muslim · Book 33 · The Book on Government
Sahih Muslim · كتاب 33 · كتاب الإمارة
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.
حَدَّثَنَا عُبَيْدُ اللَّهِ بْنُ مُعَاذٍ، حَدَّثَنَا أَبِي، حَدَّثَنَا شُعْبَةُ، عَنْ عَمْرٍو، - يَعْنِي ابْنَ مُرَّةَ - حَدَّثَنِي عَبْدُ اللَّهِ بْنُ أَبِي أَوْفَى، قَالَ كَانَ أَصْحَابُ الشَّجَرَةِ أَلْفًا وَثَلاَثَمِائَةٍ وَكَانَتْ أَسْلَمُ ثُمُنَ الْمُهَاجِرِينَ ‏.‏
Reference : Sahih Muslim 1857aIn-book reference : Book 33, Hadith 112