Quran 42:25 from Surah Ash-Shura on Divine Marvels.
وَهُوَ ٱلَّذِي يَقۡبَلُ ٱلتَّوۡبَةَ عَنۡ عِبَادِهِۦ وَيَعۡفُواْ عَنِ ٱلسَّيِّـَٔاتِ وَيَعۡلَمُ مَا تَفۡعَلُونَ
English translation: And He (is) the One Who accepts the repentance of His slaves and pardons [of] the evil and He knows what you do
Transliteration: wahuwa alladhi yaqbalu al-tawbata an ibadihi waya'fu ani al-sayiati waya'lamu ma taf 'aluna