Surah An-Nahl, ayah 106

مَن كَفَرَ بِٱللَّهِ مِنۢ بَعۡدِ إِيمَٰنِهِۦٓ إِلَّا مَنۡ أُكۡرِهَ وَقَلۡبُهُۥ مُطۡمَئِنُّۢ بِٱلۡإِيمَٰنِ وَلَٰكِن مَّن شَرَحَ بِٱلۡكُفۡرِ صَدۡرٗا فَعَلَيۡهِمۡ غَضَبٞ مِّنَ ٱللَّهِ وَلَهُمۡ عَذَابٌ عَظِيمٞ ١٠٦

Man kafara billāhi mim ba'di īmānihī illā man ukriha waqalbuhū mutma'innu bil-īmāni walākim man sharaha bil-kufri sadran fa'alayhim ghadabum minallāhi walahum 'adhābun 'azīm

Whoever disbelieves in [i.e., denies] Allāh after his belief...⁷¹⁶ except for one who is forced [to renounce his religion] while his heart is secure in faith. But those who [willingly] open their breasts to disbelief, upon them is wrath from Allāh, and for them is a great punishment;