Sahih al-Bukhari 77
صحيح البخاري#77SahihNarrated Mahmud bin Rabi`a:When I was a boy of five, I remember, the Prophet (ﷺ) took water from a bucket (used for getting water out of a well) with his mouth and threw it on my face
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: 3:19