Narrated 'Abdullah bin 'Amr:that the Prophet (ﷺ) said: There are four things that whoever has them, then he is a hypocrite, and whoever has one attribute from among them, then he has an attribute of hypocrisy,until he leaves it: Whoever lies whenever he speaks, he does not fulfill whenever he promises, he is vulgar whenever he argues, and whenever he makes an agreement he proves treacherous

English translation · Jami' at-Tirmidhi