Quran Ali 'Imran 3:177

إِنَّ ٱلَّذِينَ ٱشۡتَرَوُاْ ٱلۡكُفۡرَ بِٱلۡإِيمَٰنِ لَن يَضُرُّواْ ٱللَّهَ شَيۡـٔٗاۖ وَلَهُمۡ عَذَابٌ أَلِيمٞ

Translation

Indeed, those who purchase disbelief [in exchange] for faith - never will they harm Allāh at all, and for them is a painful punishment.