When God imposed purity for worship with water and dirt, and they are different in form but not different in origin, the basic principle is that from water He created every living thing, and He said about Adam He created him from dust, so He did not effect purity in appearance except by the soul of what He created from it, such as animals that gather the flesh, camels, and animals that gather the flesh. And camels and other things. If it were not for this comprehensive command, purity would not be valid. For this reason, zakat is valid on some wealth other than the category for which zakat is due.