He sends down water from the sky and the valleys (wadis) flow each in their measure, and the torrent carries a swelling scum; and fire from that which they kindle; desiring ornament or ware, from that rises a scum like it. As such, Allah strikes both the truth and the false. As for the scum it is cast away as jetsam, but, that which profits people remains on the earth. As such Allah strikes the parables.