Sahih Muslim 1318
صحيح مسلم#1318SahihIbn 'Abbas reported:Dhikr (mentioning the name of Allah) in a loud voice after obligatory prayers was (a common practice) during the lifetime of the Messenger of Allah (ﷺ) ; and when I heard that I came to knew that they (the people) had finished the prayer
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: 5:156