Sahih Muslim 211
صحيح مسلم#211SahihIt is reported on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings be upon him) said:Three are the signs of a hypocrite: when he spoke he told a lie, when he made a promise he acted treacherously against it, when he was trusted he betrayed
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: 1:117