Sahih al-Bukhari 1726
صحيح البخاري#1726SahihNarrated Ibn `Umar:Allah's Messenger (ﷺ) (got) his head shaved after performing his Hajj
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: 25:204