Sahih Muslim 2039
صحيح مسلم#2039SahihNafi' reported that when 'Abdullah (b. 'Umar) observed the Friday prayer and came back he observed two rak'ahs in his house, and then said:The Messenger of Allah (may peace be updn him) used to do this
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: 7:89