Surah Al-Munafiqun · The Hypocrites · Verse 3/11

Qur'an 63:3

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 (المنافقون)