Have you not seen-O Messenger-that Allah sent down from the clouds rain thus entering it into the earth, making it as gushing springs and flowing waters, then He brings forth by this water a crop different its colors and its types, then it dries after its greenness and its freshness, so you see its color yellowed, then He makes it as broken fragmented debris? Indeed, in the action of Allah of that is surely a remembrance and an exhortation for the owners of sound intellects.