Sahih Muslim 752
صحيح مسلم#752SahihA'isha reported:Asma' b. Shakal came to the Messenger of Allah (ﷺ) and said: Messenger of Allah, how one amongst us should take a bath after the menstruation, and the rest of the hadith is the same and there is no mention of bathing because of sexual intercourse
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 3:74