Jami` at-Tirmidhi 2632
جامع الترمذي#2632SahihNarrated '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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 40:27