Exodus 9:28-29

28 Entreat the LORD (for it is enough) that there be no more mighty thunder and hail; and I will let you go, and you shall stay no longer.

29 And Moses said to him, As soon as I am gone out of the city, I will spread abroad my hands to the LORD; and the thunder shall cease, neither shall there be any more hail; that you may know how that the earth is the LORD's.