Sahih Muslim 4535
صحيح مسلم#4535SahihIt has been narrated on the authority of Abdullah that the Messenger of Allah (ﷺ) said:There will be for every perfidious person on the Day of Judgment a flag by which he will be recognised. It will be announced: Here is the breach of faith of so and so
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: 32:16