وَإِذَا جَاءَكَ الَّذِينَ يُؤْمِنُونَ بِآيَاتِنَا فَقُلْ سَلَامٌ عَلَيْكُمْ ۖ كَتَبَ رَبُّكُمْ عَلَىٰ نَفْسِهِ الرَّحْمَةَ ۖ أَنَّهُ مَنْ عَمِلَ مِنكُمْ سُوءًا بِجَهَالَةٍ ثُمَّ تَابَ مِن بَعْدِهِ وَأَصْلَحَ فَأَنَّهُ غَفُورٌ رَّحِيمٌ (54)
(6:54) And when those who believe in Our signs come to you, say to them: 'Peace be upon you. Your Lord has made mercy incumbent upon Himself so that if anyone of you does a bad deed out of ignorance and thereafter repents and makes amends, surely you will find Him All-Forgiving, AllCompassionate.' *37
*37). Several of those who came to believe in the Prophet (peace be on him) had committed many serious sins before they embraced Islam. Even though their lives had altogether changed following their conversion, the opposition continued to play up the weaknesses and misdeeds of their past life. The Prophet (peace he on him) is asked to comfort such persons and to tell them that God does not punish those who sincerely repent their sins and mend their ways.