Sahih Muslim 1053
صحيح مسلم#1053SahihAnas reported:The Messenger of Allah (ﷺ) was among those whose prayers was brief and perfect
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: 4:215