Sahih al-Bukhari 1799
صحيح البخاري#1799SahihNarrated Ibn `Umar:Whenever Allah's Messenger (ﷺ) left for Mecca, he used to pray in the mosque of Ash-Shajra, and when he returned (to Medina), he used to pray in the middle of the valley of Dhul-Hulaifa and used to pass the night there till morning
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: 26:24