فَمَن يُرِدِ اللَّهُ أَن يَهدِيَهُ يَشرَح صَدرَهُ لِلإِسلامِ ۖ وَمَن يُرِد أَن يُضِلَّهُ يَجعَل صَدرَهُ ضَيِّقًا حَرَجًا كَأَنَّما يَصَّعَّدُ فِي السَّماءِ ۚ كَذٰلِكَ يَجعَلُ اللَّهُ الرِّجسَ عَلَى الَّذينَ لا يُؤمِنونَ

Whomever God wills to guide, He expands his heart to submission. And whomever He wills to misguide, He makes his heart tight and constricted, as if he were ascending into the sky. In this way, God lays defilement on those who don’t believe.