كتاب الفتن وأشراط الساعة
54  
The Book of Tribulations and Portents of the Last Hour
(16)
Chapter: Tribulation From The East, From Where The Horns Of The Shaitan Appear
(16)
باب الْفِتْنَةِ مِنَ الْمَشْرِقِ مِنْ حَيْثُ يَطْلُعُ قَرْنَا الشَّيْطَانِ
Sahih Muslim 2905 a

Ibn 'Umar reported that he heard Allah's Messenger (ﷺ) as saying (in a state) that he had turned his face towards the east:

Behold, turmoil would appear from this side, from where the horns of Satan would appear.
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا لَيْثٌ، ح وَحَدَّثَنِي مُحَمَّدُ بْنُ رُمْحٍ، أَخْبَرَنَا اللَّيْثُ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّهُ سَمِعَ رَسُولَ اللَّهِ صلى الله عليه وسلم وَهُوَ مُسْتَقْبِلُ الْمَشْرِقِ يَقُولُ ‏ "‏ أَلاَ إِنَّ الْفِتْنَةَ هَا هُنَا أَلاَ إِنَّ الْفِتْنَةَ هَا هُنَا مِنْ حَيْثُ يَطْلُعُ قَرْنُ الشَّيْطَانِ ‏"‏ ‏.‏
Reference : Sahih Muslim 2905a
In-book reference : Book 54, Hadith 58
USC-MSA web (English) reference : Book 41, Hadith 6938
  (deprecated numbering scheme)