It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The Hour will not be established until thirty Dajjals appear, each of them thinking that he is the messenger of Allah. Wealth will become abundant, tribulations will prevail, and there will be an abundance of "harj." Someone asked, "What is meant by harj?" He replied, "Killing, killing, killing" (three times).