(1) باب ذِكْرِ الْفِتَنِ وَدَلاَئِلِهَا
Narrated Abu Hurairah :
The Messenger of Allah (ﷺ) as saying: The time will become short, knowledge will be decreased, civil strife (fitan) will appear, niggardliness will be case into people's heart, and harj will be prevalent. He was asked: Messenger of Allah! what is it: He replied: Slaughter, slaughter.
Reference: Sunan Abi Dawud 4255
In-book reference: Book 37, Hadith 16
English translation: Book 36, Hadith 4242