Infighting

He will say, “Enter the Fire among nations before you, of jinn and humans.” Every time a new group enters, it curses the previous one. When all are gathered, the last will say of the first, “Our Lord, they led us astray, so give them double punishment.” He will say, “Each will have double, but you do not realize it.”

7:38He saith: Enter into the Fire among nations of the jinn and humankind who passed away before you. Every time a nation entereth, it curseth its sister (nation) till, when they have all been made to follow one another thither, the last of them saith unto the first of them: Our Lord! These led us astray, so give them double torment of the Fire. He saith: For each one there is double (torment), but ye know not.