The Messenger of Allah ﷺ said, "Knowledge will be taken away, tribulations will appear, and harj will increase."Someone asked, "Messenger of Allah, what is harj?"He replied, "Killing."
حدثنا ابن نمير عن حنظلة قال سمعت سالما قال سمعت
قال رسول الله ﷺ يقبض العلم ويظهر الفتن ويكثر الهرج قيل يا رسول الله وما الهرج قال القتل
Its isnad is sahih. Hanzala is Ibn Abu Sufyan bin Abdul-Rahman Jumahi Makki, whose reliability was established earlier at 4524. Salim is Ibn Abdullah bin Umar bin Khattab.Bukhari 1:165 narrated the hadith from Makki bin Ibrahim, from Hanzala, with this same wording. Its meaning has already appeared at length at 7186 and 7481.