Sahih al-Bukhari 34
Narrated 'Abdullah bin 'Amr:
The Prophet (ﷺ) said, "Whoever has the following four (characteristics) 
     will be a pure hypocrite and whoever has one of the following four 
     characteristics will have one characteristic of hypocrisy unless and 
     until he gives it up.


     1. Whenever he is entrusted, he betrays.


     2. Whenever he speaks, he tells a lie.


     3. Whenever he makes a covenant, he proves treacherous.


     4. Whenever he quarrels, he behaves in a very imprudent, evil and 
     insulting manner."
حَدَّثَنَا قَبِيصَةُ بْنُ عُقْبَةَ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ الأَعْمَشِ، عَنْ عَبْدِ اللَّهِ بْنِ مُرَّةَ، عَنْ مَسْرُوقٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، أَنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ ‏
"‏ أَرْبَعٌ مَنْ كُنَّ فِيهِ كَانَ مُنَافِقًا خَالِصًا، وَمَنْ كَانَتْ فِيهِ خَصْلَةٌ مِنْهُنَّ كَانَتْ فِيهِ خَصْلَةٌ مِنَ النِّفَاقِ حَتَّى يَدَعَهَا إِذَا اؤْتُمِنَ خَانَ وَإِذَا حَدَّثَ كَذَبَ وَإِذَا عَاهَدَ غَدَرَ، وَإِذَا خَاصَمَ فَجَرَ ‏"‏‏.‏ تَابَعَهُ شُعْبَةُ عَنِ الأَعْمَشِ‏.‏