Quran 99:7 from Surah Az-Zalzala on Divine Marvels.
فَمَن يَعۡمَلۡ مِثۡقَالَ ذَرَّةٍ خَيۡرٗا يَرَهُۥ
English translation: So whoever does (equal to the) weight (of) an atom good will see it
Transliteration: faman ya'mal mith'qala dharratin khayran yarahu