Hadith #6798 (Sahih al-Bukhari)
Book: Afflictions and the End of the World
Narrator(s): 'Abdullah and Abu Musa
Grade: Sahih

The Prophet (ﷺ) said, “Near the establishment of the Hour there will be days during which Religious ignorance will spread, knowledge will be taken away (vanish) and there will be much Al-Harj, and Al- Harj means killing.”

Source: https://parallelquran.com/hadith/sahih-al-bukhari-6798/