Surah Al-An'am — Ayah 54 (6:54)
وَإِذَا جَآءَكَ ٱلَّذِينَ يُؤۡمِنُونَ بِـَٔايَٰتِنَا فَقُلۡ سَلَٰمٌ عَلَيۡكُمۡۖ كَتَبَ رَبُّكُمۡ عَلَىٰ نَفۡسِهِ ٱلرَّحۡمَةَ أَنَّهُۥ مَنۡ عَمِلَ مِنكُمۡ سُوٓءَۢا بِجَهَٰلَةٖ ثُمَّ تَابَ مِنۢ بَعۡدِهِۦ وَأَصۡلَحَ فَأَنَّهُۥ غَفُورٞ رَّحِيمٞ ٥٤
English translation (Saheeh International)
And when those come to you who believe in Our verses, say, "Peace be upon you. Your Lord has decreed upon Himself mercy: that any of you who does wrong out of ignorance and then repents after that and corrects himself - indeed, He is Forgiving and Merciful."
Brief commentary
When those who accept My signs that indicate the truth of what you have brought come to you, O Messenger, then reply to their greeting of peace in honour of them and tell them the good news of My mercy. I have gracefully made mercy obligatory on Myself. If anyone among you commits sin, out of ignorance and foolishness, and then repents from that sin and sets their actions right, then I will forgive them, for I am Forgiving and Compassionate to the servant who repents to Me.