Surah Al-Imran, ayah 177

3:177

إِنَّ ٱلَّذِينَ ٱشۡتَرَوُاْ ٱلۡكُفۡرَ بِٱلۡإِيمَٰنِ لَن يَضُرُّواْ ٱللَّهَ شَيۡـٔٗاۖ وَلَهُمۡ عَذَابٌ أَلِيمٞ ١٧٧

Innal-ladhīnashtarawul-kufra bil-īmāni lan yadurrullāha shay'an walahum 'adhābun alīm

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