Sahih al-Bukhari 5894
صحيح البخاري#5894SahihNarrated Muhammad bin Seereen:I asked Anas, "Did the Prophet (ﷺ) dye his hair?" Anas replied, "The Prophet (ﷺ) did not have except a few grey hairs
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: 77:111