Surah Aali Imran (The Family of Imran), Verse 106

یَّوْمَ تَبْیَضُّ وُجُوْهٌ وَّتَسْوَدُّ وُجُوْهٌ فَاَمَّا الَّذِیْنَ اسْوَدَّتْ وُجُوْهُهُمْ اَكَفَرْتُمْ بَعْدَ اِیْمَانِكُمْ فَذُوْقُوا الْعَذَابَ بِمَا كُنْتُمْ تَكْفُرُوْنَ ۟

Yawma tabi yaddu wujoohunw wa taswaddu wujooh; fa-ammal lazeenas waddat wujoo hum akafartum ba'da eemaanikum fazooqul 'azaaba bimaa kuntum takfuroon

“On the Day when some faces will be (lit up with) white, and some faces will be (in the gloom of) black: To those whose faces will be black, (will be said): "Did ye reject Faith after accepting it? Taste then the penalty for rejecting Faith."”

Quran 3:106 (Yusuf Ali Translation)