Al-Munafiqun · Ayah 3
ذَٰلِكَ بِأَنَّهُمْ ءَامَنُوا۟ ثُمَّ كَفَرُوا۟ فَطُبِعَ عَلَىٰ قُلُوبِهِمْ فَهُمْ لَا يَفْقَهُونَ
That is because they believed, and then they disbelieved; so their hearts were sealed over, and they do not understand.
Quran 63:3 (Al-Munafiqun) · Saheeh International, Noor International Center (QuranEnc v1.1.2)