In 556, a group of shepherds saw Allah smite the moon with a stone from his sling. They immediately ran to their Caliph and told him what they had seen, and he pondered the meaning of this for many days. He then sent messengers to other Caliphs, and they agreed that Allah was telling them that moon-worshipers would not enter paradise. A sense of responsibility for the men around them required them to strike out and convert all the pagans to the true worship of Allah.