كتاب الفضائل
43  
The Book of Virtues
(9)
Chapter: The Cistern Of Our Prophet (SAW) And Its Attributes
(9)
باب إِثْبَاتِ حَوْضِ نَبِيِّنَا صلى الله عليه وسلم وَصِفَاتِهِ ‏‏
Sahih Muslim 2297 a

'Abdullah reported Allah's Messenger (ﷺ) as saying; I shall be there at the Cistern before you, and I shall have to contend for some people, but I shall have to yield. I would be saying:

My Lord, they are my friends, they are my friends, and it would be said: You don't know what innovations they made after you.
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَأَبُو كُرَيْبٍ وَابْنُ نُمَيْرٍ قَالُوا حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ شَقِيقٍ، عَنْ عَبْدِ اللَّهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏ "‏ أَنَا فَرَطُكُمْ عَلَى الْحَوْضِ وَلأُنَازِعَنَّ أَقْوَامًا ثُمَّ لأُغْلَبَنَّ عَلَيْهِمْ فَأَقُولُ يَا رَبِّ أَصْحَابِي أَصْحَابِي ‏.‏ فَيُقَالُ إِنَّكَ لاَ تَدْرِي مَا أَحْدَثُوا بَعْدَكَ ‏"‏ ‏.‏
Reference : Sahih Muslim 2297a
In-book reference : Book 43, Hadith 39
USC-MSA web (English) reference : Book 30, Hadith 5690
  (deprecated numbering scheme)