Sahih Muslim 2767
Sahih Muslim · Book 50: The Book of Repentance · The Acceptance Of The Repentance Of The One Who Kills, Even If He Has Killed A Great Deal
Abu Burda reported Allah's Messenger (ﷺ) as saying:
حَدَّثَنَا مُحَمَّدُ بْنُ عَمْرِو بْنِ عَبَّادِ بْنِ جَبَلَةَ بْنِ أَبِي رَوَّادٍ ، حَدَّثَنَا حَرَمِيُّ بْنُ عُمَارَةَ ، حَدَّثَنَا شَدَّادٌ أَبُو طَلْحَةَ الرَّاسِبِيُّ ، عَنْ غَيْلاَنَ بْنِ جَرِيرٍ ، عَنْ أَبِي بُرْدَةَ ، عَنْ أَبِيهِ ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " يَجِيءُ يَوْمَ الْقِيَامَةِ نَاسٌ مِنَ الْمُسْلِمِينَ بِذُنُوبٍ أَمْثَالِ الْجِبَالِ فَيَغْفِرُهَا اللَّهُ لَهُمْ وَيَضَعُهَا عَلَى الْيَهُودِ وَالنَّصَارَى " . فِيمَا أَحْسِبُ أَنَا . قَالَ أَبُو رَوْحٍ لاَ أَدْرِي مِمَّنِ الشَّكُّ . قَالَ أَبُو بُرْدَةَ فَحَدَّثْتُ بِهِ عُمَرَ بْنَ عَبْدِ الْعَزِيزِ فَقَالَ أَبُوكَ حَدَّثَكَ هَذَا عَنِ النَّبِيِّ صلى الله عليه وسلم قُلْتُ نَعَمْ .
There would come people amongst the Muslims on the Day of Resurrection with as heavy sins as a mountain, and Allah would forgive them and He would place in their stead the Jews and the Christians. (As far as I think), Abu Raub said: I do not know as to who is in doubt. Abu Burda said: I narrated it to 'Umar b. 'Abd al-'Aziz, whereupon he said: Was it your father who narrated it to you from Allah's Apostle (ﷺ)? I said: Yes.