Surah Al-An'am, ayah 125

فَمَن يُرِدِ ٱللَّهُ أَن يَهۡدِيَهُۥ يَشۡرَحۡ صَدۡرَهُۥ لِلۡإِسۡلَٰمِۖ وَمَن يُرِدۡ أَن يُضِلَّهُۥ يَجۡعَلۡ صَدۡرَهُۥ ضَيِّقًا حَرَجٗا كَأَنَّمَا يَصَّعَّدُ فِي ٱلسَّمَآءِۚ كَذَٰلِكَ يَجۡعَلُ ٱللَّهُ ٱلرِّجۡسَ عَلَى ٱلَّذِينَ لَا يُؤۡمِنُونَ ١٢٥

Faman yuridillāhu an yahdiyahū yashrah sadrahū lil-islāmi waman yurid an yudillahū yaj'al sadrahū dayyiqan harajan ka annamā yassa''adu fis-samā'i kadhālika yaj'alullāhur-rijsa 'alal-ladhīna lā yu'minūn

So whoever Allāh wants to guide - He expands his breast to [contain] Islām; and whoever He wants to send astray³⁴² - He makes his breast tight and constricted as though he were climbing into the sky. Thus does Allāh place defilement upon those who do not believe.