And Muhammad ibn Rafi' narrated to us, 'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from Hammam ibn Munabbih, who said: This is what Abu Hurayrah narrated to us, from the Messenger of Allah, may Allah bless him and grant him peace. Then he mentioned hadiths, among them: The Messenger of Allah, may Allah bless him and grant him peace, said: "The Hour will not come until two great groups fight each other, and there will be a great slaughter between them, and their claim will be one."