Hadith 56

‘Abdallah b. ‘Amr reported God's messenger as saying, “Four characteristics constitute anyone who possesses them a sheer hypocrite, and anyone who possesses one of them possesses a characteristic of hypocrisy till he abandons it: when he is trusted he betrays his trust, when he talks he lies, when he makes a covenant he acts treacherously, and when he quarrels he deviates from the truth.” (Bukhari and Muslim.)