Sahih Muslim 2294
Sahih Muslim · Book 43: The Book of Virtues · The Cistern Of Our Prophet (SAW) And Its Attributes
'A'isha reported:
وَحَدَّثَنَا ابْنُ أَبِي عُمَرَ ، حَدَّثَنَا يَحْيَى بْنُ سُلَيْمٍ ، عَنِ ابْنِ خُثَيْمٍ ، عَنْ عَبْدِ اللَّهِ بْنِ عُبَيْدِ، اللَّهِ بْنِ أَبِي مُلَيْكَةَ أَنَّهُ سَمِعَ عَائِشَةَ ، تَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ وَهُوَ بَيْنَ ظَهْرَانَىْ أَصْحَابِهِ " إِنِّي عَلَى الْحَوْضِ أَنْتَظِرُ مَنْ يَرِدُ عَلَىَّ مِنْكُمْ فَوَاللَّهِ لَيُقْتَطَعَنَّ دُونِي رِجَالٌ فَلأَقُولَنَّ أَىْ رَبِّ مِنِّي وَمِنْ أُمَّتِي . فَيَقُولُ إِنَّكَ لاَ تَدْرِي مَا عَمِلُوا بَعْدَكَ مَا زَالُوا يَرْجِعُونَ عَلَى أَعْقَابِهِمْ " .
I heard Allah's Messenger (ﷺ) say in the company of his Companions: I would be on the Cistern waiting for those who would be coming to me from amongst you. By Allah, some persons would be prevented from coming to me, and I would say: My Lord, they are my followers and people of my Umma. And He would say,: You don't know what they did after you; they had been constantly turning back on their heels (from their religion).