Hadith on Hypocrisy: The signs of hypocrisy are falsehood and treachery

Abdullah ibn Amr reported: The Messenger of Allah, peace and blessings be upon him, said, “There are four signs that make someone a pure hypocrite and whoever has them has a characteristic of hypocrisy until he abandons it: when he speaks he lies, when he makes a covenant he is treacherous, when he makes a promise he breaks it, and when he argues he is wicked.”

Source: Ṣaḥīḥ al-Bukhārī 34, Ṣaḥīḥ Muslim 58

Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim

عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَرْبَعٌ مَنْ كُنَّ فِيهِ كَانَ مُنَافِقًا خَالِصًا وَمَنْ كَانَتْ فِيهِ خَلَّةٌ مِنْهُنَّ كَانَتْ فِيهِ خَلَّةٌ مِنْ نِفَاقٍ حَتَّى يَدَعَهَا إِذَا حَدَّثَ كَذَبَ وَإِذَا عَاهَدَ غَدَرَ وَإِذَا وَعَدَ أَخْلَفَ وَإِذَا خَاصَمَ فَجَرَ

34 صحيح البخاري كتاب الإيمان آية المنافق ثلاث

58 صحيح مسلم كتاب الإيمان باب بيان خصال المنافق