Sahih Muslim 6464
صحيح مسلم#6464Sahihحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَمُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، قَالاَ حَدَّثَنَا عَبْدَةُ بْنُ، سُلَيْمَانَ عَنْ عَاصِمٍ، عَنْ أَنَسٍ، قَالَ حَالَفَ رَسُولُ اللَّهِ صلى الله عليه وسلم بَيْنَ قُرَيْشٍ وَالأَنْصَارِ فِي دَارِهِ الَّتِي بِالْمَدِينَةِ .
Anas reported Allah's Messenger (ﷺ) established fraternity between the Quraish and the Ansar in his house at Medina
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 44:293