The prophet Elijah asked a young man whether he prefered 7 good years when old or when young. His wife advised him to ask for 7 prosperous years when young for if he acted charitably during that period of prosperity it might be prolonged. Elijah gave him a lucky dinar and he prospered for 7 years. The prophet then called for it and he produced it at the end of the 7 years, with an account of his charitable deeds. The lucky dinar was therefore allowed to remain with him and he and his wife prospered till old age.