Qabasذَٰلِكَ بِأَنَّهُمۡ ءَامَنُواْ ثُمَّ كَفَرُواْ فَطُبِعَ عَلَىٰ قُلُوبِهِمۡ فَهُمۡ لَا يَفۡقَهُونَ ٣
Dhālika bi annahum āmanū thumma kafarū fatubi'a 'alā qulūbihim fahum lā yafqahūn
That is because they believed, and then they disbelieved; so their hearts were sealed over, and they do not understand.