Sahih al-Bukhari 5552
صحيح البخاري#5552SahihIbn 'Umar said, "Allah's Messenger (ﷺ) used to slaughter (camels and sheep, etc.,) as sacrifices at the Musalla
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: 73:8