Sahih al-Bukhari 204
صحيح البخاري#204SahihNarrated Ja`far bin `Amr bin Umaiya Ad-Damri:My father said, "I saw the Prophet (ﷺ) passing wet hands over his Khuffs (socks made from thick fabric or leather)
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: 4:70