Sahih al-Bukhari, Hadith 6585 ⓘ
Abu Huraira narrated that the Prophet said: "On the Day of Resurrection a group of companions will come to me, but will be driven away from the Lake-Fount, and I will say, 'O Lord (those are) my companions!' It will be said, 'You have no knowledge as to what they innovated after you left; they turned apostate as renegades (reverted from Islam).
وَقَالَ أَحْمَدُ بْنُ شَبِيبِ بْنِ سَعِيدٍ الْحَبَطِيُّ حَدَّثَنَا أَبِي، عَنْ يُونُسَ، عَنِ ابْنِ شِهَابٍ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّهُ كَانَ يُحَدِّثُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " يَرِدُ عَلَىَّ يَوْمَ الْقِيَامَةِ رَهْطٌ مِنْ أَصْحَابِي فَيُحَلَّئُونَ عَنِ الْحَوْضِ فَأَقُولُ يَا رَبِّ أَصْحَابِي. فَيَقُولُ إِنَّكَ لاَ عِلْمَ لَكَ بِمَا أَحْدَثُوا بَعْدَكَ، إِنَّهُمُ ارْتَدُّوا عَلَى أَدْبَارِهِمُ الْقَهْقَرَى " .
also referenced under: Book 81, Hadith 173 (In-Book) & Volume 8, Book 76, Hadith 585 (USC-MSA)