Sunan an-Nasa'i 5023
It was narrated that Abu Wa'il said:
"Abdullah said: 'There are three (traits), whoever has them is a hypocrite: When he speaks, he lies; when he is entrusted with something, he betrays that trust; and when he makes a promise, he breaks it. Whoever has one of these (traits) then a trait of hypocrisy has not ceased in him, until he leaves it.'" (Sahih Mawquf)
أَخْبَرَنَا عَمْرُو بْنُ يَحْيَى بْنِ الْحَارِثِ قَالَ حَدَّثَنَا الْمُعَافَى قَالَ حَدَّثَنَا زُهَيْرٌ قَالَ حَدَّثَنَا مَنْصُورُ بْنُ الْمُعْتَمِرِ عَنْ أَبِي وَائِلٍ قَالَ قَالَ عَبْدُ اللَّهِ ثَلَاثٌ مَنْ كُنَّ فِيهِ فَهُوَ مُنَافِقٌ إِذَا حَدَّثَ كَذَبَ وَإِذَا اؤْتُمِنَ خَانَ وَإِذَا وَعَدَ أَخْلَفَ فَمَنْ كَانَتْ فِيهِ وَاحِدَةٌ مِنْهُنَّ لَمْ تَزَلْ فِيهِ خَصْلَةٌ مِنْ النِّفَاقِ حَتَّى يَتْرُكَهَا