Sahih al-Bukhari 518
صحيح البخاري#518SahihNarrated Maimuna:The Prophet (ﷺ) used to pray while I used to sleep beside him during my periods (menses) and in prostration his garment used to touch me
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: 8:165