When the Qur'an was descended on the Prophet, peace be upon him and his descendants, there were four kinds of property. One, the property of Muslim individuals which he distributed among the successors according to fixed shares. Second, the tax (fay') which he distributed to those for whom it was meant. Third, the one-fifth (khums) levy for which Allah had fixed the ways of disposal. Fourth, amounts of charity (sadaqat) whose disposal was also fixed by Allah. The ornaments of Ka'bah did exist in those days but Allah left them as they were, but did not leave them by omission, nor were they unknown to Him. Therefore, you retain them where Allah and His Prophet placed them.