Hazrat Abu Musa (may Allah be pleased with him) narrated that the Prophet Muhammad (peace and blessings be upon him) said: On the Day of Resurrection, there will first be such days in which ignorance will descend and knowledge will be taken away, and "harj" will increase, and "harj" means killing.
Hadith Referenceاللؤلؤ والمرجان / كتاب العلم / 1710
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في: 92 كتاب الفتن: 5 باب ظهور الفتن»