Sahih Muslim 2171
صحيح مسلم#2171SahihA hadith like this has been transmitted by Hafsa on the authority of Umm 'Atiyya with the exception (of these words that the Prophet asked them to wash her dead body):" three times, five times, seven times, or more than that, if you deem fit:" Hafsa (further) said on the authority of Umm 'Atiyya: We braided (the hair) of her head in three plaits
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: 11:49