Quran 30:44 from Surah Ar-Room on Divine Marvels.
مَن كَفَرَ فَعَلَيۡهِ كُفۡرُهُۥۖ وَمَنۡ عَمِلَ صَٰلِحٗا فَلِأَنفُسِهِمۡ يَمۡهَدُونَ
English translation: Whoever disbelieves then against him (is) his disbelief And whoever does righteousness then for themselves they are preparing
Transliteration: man kafara fa'alayhi kuf'ruhu waman amila salihan fali-anfusihim yamhaduna