التوبة — At-Taubah Ayat 77
فَاَعْقَبَهُمْ نِفَاقًا فِيْ قُلُوْبِهِمْ اِلٰى يَوْمِ يَلْقَوْنَهٗ بِمَآ اَخْلَفُوا اللّٰهَ مَا وَعَدُوْهُ وَبِمَا كَانُوْا يَكْذِبُوْنَ
Fa a‘qabahum nifāqan fī qulūbihim ilā yaumi yalqaunahū bimā akhlafullāha mā wa‘adūhu wa bimā kānū yakżibūn(a).
"So He penalized them with hypocrisy in their hearts until the Day they will meet Him - because they failed Allah in what they promised Him and because they [habitually] used to lie."