Quran 6:160 from Surah Al-An'aam on Divine Marvels.
مَن جَآءَ بِٱلۡحَسَنَةِ فَلَهُۥ عَشۡرُ أَمۡثَالِهَاۖ وَمَن جَآءَ بِٱلسَّيِّئَةِ فَلَا يُجۡزَىٰٓ إِلَّا مِثۡلَهَا وَهُمۡ لَا يُظۡلَمُونَ
English translation: Whoever came with a good deed then for him (is) ten (times) the like of it And whoever came with an evil deed then not he will be recompensed except the like of it and they will not (be) wronged
Transliteration: man jaa bil-hasanati falahu ashru amthaliha waman jaa bil-sayi-ati fala yuj'za illa mith'laha wahum la yuz'lamuna