The Prophet [SAW] said: "There are four (traits), whoever has them is a hypocrite and whoever has one of them, then has one of the traits of hypocrisy, until he gives it up: When he speaks, he lies; when he makes a promise, he breaks it; when he makes a covenant, he betrays it; and when he argues, he resorts to foul language." (Using translation from Nasāʾī 5020)
عَنِ النَّبِيِّ ﷺ قَالَ أَرْبَعٌ مَنْ كُنَّ فِيهِ فَهُوَ مُنَافِقٌ أَوْ كَانَتْ فِيهِ خَصْلَةٌ مِنَ الْأَرْبَعِ كَانَتْ فِيهِ خَصْلَةٌ مِنَ النِّفَاقِ حَتَّى يَدَعَهَا إِذَا حَدَّثَ كَذَبَ وَإِذَا وَعَدَ أَخْلَفَ وَإِذَا عَاهَدَ غَدَرَ وَإِذَا خَاصَمَ فَجَرَ