Peace
وَإِذَا جَاءَكَ الَّذِينَ يُؤْمِنُونَ بِآيَاتِنَا فَقُلْ سَلَامٌ عَلَيْكُمْ ۖ كَتَبَ رَبُّكُمْ عَلَىٰ نَفْسِهِ الرَّحْمَةَ ۖ أَنَّهُ مَنْ عَمِلَ مِنْكُمْ سُوءًا بِجَهَالَةٍ ثُمَّ تَابَ مِنْ بَعْدِهِ وَأَصْلَحَ فَأَنَّهُ غَفُورٌ رَحِيمٌ {54}
And when they come to you, those who are believing in Our Signs, then say: ‘سَلَامٌ عَلَيْكُمْ ’ ‘Peace be upon you’. Your Lord has Prescribed the Mercy upon Himself. It is so that the one from you who does evil out of ignorance, then repents from after it and amends, then He is Forgiving, Merciful [6:54]
العياشي: عن أبي عمرو الزبيري، عن أبي عبد الله (عليه السلام) قال: «رحم الله عبدا تاب إلى الله قبل الموت، فإن التوبة مطهرة من دنس الخطيئة، و منقذة من شقاء الهلكة، فرض الله بها على نفسه لعباده الصالحين، فقال: كَتَبَ رَبُّكُمْ عَلى نَفْسِهِ الرَّحْمَةَ أَنَّهُ مَنْ عَمِلَ مِنْكُمْ سُوءاً بِجَهالَةٍ ثُمَّ تابَ مِنْ بَعْدِهِ وَ أَصْلَحَ فَأَنَّهُ غَفُورٌ رَحِيمٌ، وَ مَنْ يَعْمَلْ سُوءاً أَوْ يَظْلِمْ نَفْسَهُ ثُمَّ يَسْتَغْفِرِ اللَّهَ يَجِدِ اللَّهَ غَفُوراً رَحِيماً
Al Ayyashi, from Abu Amro Al Zubeyri,
‘From Abu Abdullah-asws having said: ‘May Allah-azwj have Mercy on a servant who repents to Allah-azwj before the death, for the repentance is a cleansing from the filth of the sins, and a rescuer from wretchedness of the destruction. Allah-azwj has Necessitated (Mercy) upon Himself-azwj for His-azwj righteous servants, so He-azwj Said: Your Lord has Prescribed the mercy upon Himself. It is so that the one from you who does evil out of ignorance, then repents from after it and amends, then He is Forgiving, Merciful [6:54]’’.[1]
[1] تفسير العياشي 1: 361/ 27