وَمَا كَانَ لِنَفۡسٍ أَن تُؤۡمِنَ إِلَّا بِإِذۡنِ ٱللَّهِۚ وَيَجۡعَلُ ٱلرِّجۡسَ عَلَى ٱلَّذِينَ لَا يَعۡقِلُونَ
Wama kana linafsin an tumina illa biithni Allahi wayajAAalu alrrijsa AAala allatheena la yaAAqiloona
No soul can believe, except by the will of Allah, and He will place doubt (or obscurity) on those who will not understand.