Allah will say. enter the Fire among the communities who have passed away before you , of genii and mankind . So oft as a community will enter it , it shall curse its sister , until , when all shall have arrived one after anot her therein , the last of them shall say of the first of them : our Lord ! these led us astray ; so mete out unto them and double torment of the Fire , He will say : to each , double ; but ye know not .