Sahih Muslim 1957
صحيح مسلم#1957SahihSa'id al-Khudri reported Allah's Messenger (ﷺ) as saying:Taking a bath on Friday is essential for every adult person
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: 7:7