Beholdest thou not that Allah driveth a cloud along, then combineth it, then maketh it a heap, and then thou beholdest the fine rain come forth from the interstices thereof? And He sendeth down from the heaven mountains wherein is hail, then afflicteth therewith whomsoever He will, and averteth it from whomsoever He will: wellnigh the flash of His lightening taketh away the sights.