Sahih al-Bukhari 1730
صحيح البخاري#1730SahihNarrated Muawiya:I cut short the hair of Allah's Messenger (ﷺ) with a long blade
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: 25:208