Sahih al-Bukhari 4783
صحيح البخاري#4783SahihNarrated Anas:We think that the Verse: 'Among the Believers are men who have been true to their covenant with Allah,' was revealed in favor of Anas bin An-Nadr
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 65:305