Sahih al-Bukhari 2462
صحيح البخاري#2462SahihNarrated `Umar:When Allah took away the soul of His Prophet at his death, the Ansar assembled In the shed of Bani Sa`ida. I said to Abu Bakr, "Let us go." So, we came to them (i.e. to Ansar) at the shed of Bani Sa`ida. (See Hadith No. 19, Vol. 5 for details)
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: 46:23