It is narrated from Hazrat Hudhaifa (may Allah be pleased with him) that he said: O group of Mudar, come close! By Allah, you will kill every believer and put them into trials until Allah, His angels, and the believers will fight against you, to the extent that despite your abundance everywhere, you will not be able to defend yourselves. His companions asked: When we are in such a state, why would we do this? He replied: Surely, there will be a leader among you, and there will be some who will go ahead among you, like those who go ahead among horses.