Sahih Muslim 1670
صحيح مسلم#1670SahihAbu Murra narrated on the authority of Umm Hani that the Messenger of Allah (ﷺ) on the day of the Conquest of Mecca observed in her house eight rak'ahs of prayer in one cloth, its opposite corners having been tied from the opposite sides
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: 6:100