Sahih al-Bukhari 4411
صحيح البخاري#4411SahihNarrated Ibn `Umar:During Hajjat-ul-Wada`, the Prophet (ﷺ) and some of his companions got their heads shaved while some of his companions got their head-hair cut short
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: 64:433