Sahih al-Bukhari 3787
صحيح البخاري#3787SahihNarrated Zaid bin Al-Arqam:The Ansar said, "O Allah's Messenger (ﷺ)! Every prophet has his own followers and we have followed you. So will you invoke Allah to let our followers be considered from us (as Ansar too)?" So he invoked Allah accordingly
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: 63:12