Sahih Muslim 6421
صحيح مسلم#6421SahihAbu Usaid reported Allah's Messenger (ﷺ) as saying:The worthiest clans of the Ansar are Banu Najjar, thereafter Banu al-Ashhal; thereafter Banu Harith b. Banu Khazraj; thereafter Banu Sa'idah and there is goodness in all clans of the Ansar. Sa'd said: I see that he (the Holy Prophet) has placed others above us. It was said to (him): He has placed you above many others
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 44:250