وَعَنْ أَبِي سَعِيدٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:
" إِذَا أَسْلَمَ الْعَبْدُ فَحَسُنَ إِسْلَامُهُ يُكَفِّرُ اللَّهُ عَنْهُ كُلَّ سَيِّئَةٍ كَانَ زَلَفَهَا وَكَانَ بَعْدَ الْقِصَاصِ: الْحَسَنَةُ بِعَشْرِ أَمْثَالِهَا إِلَى سَبْعِمِائَةِ ضِعْفٍ إِلَى أَضْعَافٍ كَثِيرَةٍ وَالسَّيِّئَةُ بِمِثْلِهَا إِلَّا أَنْ يَتَجَاوَزَ اللَّهُ عَنْهَا ". رَوَاهُ البُخَارِيّ
Abu Sa'id reported God’s messenger as saying, “When a man accepts Islam sincerely God removes from him every sin he has previously committed. After that there will be requital, a good deed getting ten to seven hundred times as much and many times more, and an evil deed getting a punishment equivalent to it, unless God overlooks it.” Bukhari transmitted it.
Source: Mishkat al-Masabih — repository translation · Al-Khatib Al-Tabrizi — authenticity/grade metadata requires independent source review · Sunnah.comAudio not available for the selected reciter.
Source: Mishkat al-Masabih — repository arabic · Al-Khatib Al-Tabrizi · Sunnah.com