Sahih al-Bukhari 6593
Narrated Asma 'bint Abu Bakr:
The Prophet (ﷺ) said, "I will be standing at the Lake-Fount so that I will see whom among you will come 
to me; and some people will be taken away from me, and I will say, 'O Lord, (they are) from me and 
from my followers.' Then it will be said, 'Did you notice what they did after you? By Allah, they kept 
on turning on their heels (turned as renegades).' " The sub-narrator, Ibn Abi Mulaika said, "O Allah, 
we seek refuge with You from turning on our heels, or being put to trial in our religion."
حَدَّثَنَا سَعِيدُ بْنُ أَبِي مَرْيَمَ، عَنْ نَافِعِ بْنِ عُمَرَ، قَالَ حَدَّثَنِي ابْنُ أَبِي مُلَيْكَةَ، عَنْ أَسْمَاءَ بِنْتِ أَبِي بَكْرٍ ـ رضى الله عنهما ـ قَالَتْ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ إِنِّي عَلَى الْحَوْضِ حَتَّى أَنْظُرُ مَنْ يَرِدُ عَلَىَّ مِنْكُمْ، وَسَيُؤْخَذُ نَاسٌ دُونِي فَأَقُولُ يَا رَبِّ مِنِّي وَمِنْ أُمَّتِي‏.‏ فَيُقَالُ هَلْ شَعَرْتَ مَا عَمِلُوا بَعْدَكَ وَاللَّهِ مَا بَرِحُوا يَرْجِعُونَ عَلَى أَعْقَابِهِمْ ‏"‏‏.‏ فَكَانَ ابْنُ أَبِي مُلَيْكَةَ يَقُولُ اللَّهُمَّ إِنَّا نَعُوذُ بِكَ أَنْ نَرْجِعَ عَلَى أَعْقَابِنَا أَوْ نُفْتَنَ عَنْ دِينِنَا‏.‏ ‏{‏أَعْقَابِكُمْ تَنْكِصُونَ‏}‏ تَرْجِعُونَ عَلَى الْعَقِبِ‏.‏