ذَٰلِكَ بِأَنَّهُمۡ ءَامَنُواْ ثُمَّ كَفَرُواْ فَطُبِعَ عَلَىٰ قُلُوبِهِمۡ فَهُمۡ لَا يَفۡقَهُونَ
Thalika biannahum amanoo thumma kafaroo fatubiAAa AAala quloobihim fahum la yafqahoona
That is because they believed, and then they disbelieved; so their hearts were sealed over, and they do not understand