قَالَ مَالِکٌ أَخْبَرَنِي زَيْدُ بْنُ أَسْلَمَ أَنَّ عَطَائَ بْنَ يَسَارٍ أَخْبَرَهُ أَنَّ أَبَا سَعِيدٍ الْخُدْرِيَّ أَخْبَرَهُ أَنَّهُ سَمِعَ رَسُولَ اللَّهِ صَلَّی اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ إِذَا أَسْلَمَ الْعَبْدُ فَحَسُنَ إِسْلَامُهُ يُکَفِّرُ اللَّهُ عَنْهُ کُلَّ سَيِّئَةٍ کَانَ زَلَفَهَا وَکَانَ بَعْدَ ذَلِکَ الْقِصَاصُ الْحَسَنَةُ بِعَشْرِ أَمْثَالِهَا إِلَی سَبْعِ مِائَةِ ضِعْفٍ وَالسَّيِّئَةُ بِمِثْلِهَا إِلَّا أَنْ يَتَجَاوَزَ اللَّهُ عَنْهَا
صحیح بخاری · Hadith 41
Narrated Abu Sa'id Al Khudri:Allah's Messenger (saws) said, "If a person embraces Islam sincerely, then Allah shall forgive all his past sins, and after that starts the settlement of accounts, the reward of his good deeds will be ten times to seven hundred times for each good deed and one evil deed will be recorded as it is unless Allah forgives it."
Translated by Dr. Muhammad Muhsin Khan · Reviewed by Islamic University of Madinah · Published March 2020