عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " آيَةُ الْمُنَافِقِ ثَلاَثٌ إِذَا حَدَّثَ كَذَبَ، وَإِذَا وَعَدَ أَخْلَفَ، وَإِذَا اؤْتُمِنَ خَانَ ".(بُخاری شریف/۶۰۹۵)
Translation
The Messenger of Allah (ﷺ) said: "The signs of a hypocrite are three: (1) when he speaks, he lies, (2) when he promises, he breaks it, (3) when he is entrusted, he betrays." (Tuhfat-ul-Qari)