Sahih Muslim 210
صحيح مسلم#210SahihIt is narrated on the authority of Abdullah b. 'Amr that the Prophet observed:"There are four characteristics, whoever has them all is a pure hypocrite, and whoever has one of its characteristics, he has one of the characteristics of hypocrisy, until he gives it up: When he speaks he lies, when he makes a covenant he betrays it, when he makes a promise he breaks it, and when he disputes he resorts to obscene speech." In the narration of Sufyan (one of the narrators) it is: "And if he has one of them, he has one of the characteristics of hypocrisy
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: 1:116