Quran 18:73 from Surah Al-Kahf on Divine Marvels.
قَالَ لَا تُؤَاخِذۡنِي بِمَا نَسِيتُ وَلَا تُرۡهِقۡنِي مِنۡ أَمۡرِي عُسۡرٗا
English translation: He said (Do) not blame me for what I forgot and (do) not be hard (upon) me in my affair (raising) difficulty
Transliteration: qala la tuakhidh'ni bima nasitu wala tur'hiq'ni min amri us'ran