Surah Yunus (Jonah), Verse 100

وَمَا كَانَ لِنَفْسٍ اَنْ تُؤْمِنَ اِلَّا بِاِذْنِ اللّٰهِ وَیَجْعَلُ الرِّجْسَ عَلَی الَّذِیْنَ لَا یَعْقِلُوْنَ ۟

Wa maa kaana linafsin an tu'mina illaa bi iznil laah; wa yaj'alur rijsa 'alal lazeena laa ya'qiloon

“No soul can believe, except by the will of Allah, and He will place doubt (or obscurity) on those who will not understand.”

Quran 10:100 (Yusuf Ali Translation)