Sahih al-Bukhari 277
صحيح البخاري#277SahihNarrated Aisha:Whenever any one of us was Junub, she poured water over her head thrice with both her hands and then rubbed the right side of her head with one hand and rubbed the left side of the head with the other hand
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: 5:29