Exodus 9:28-29

9:28 Pray to the Lord, for the mighty thunderings and hail are too much! I will release you and you will stay no longer.”

9:29 Moses said to him, “When I leave the city I will spread my hands to the Lord, the thunder will cease, and there will be no more hail, so that you may know that the earth belongs to the Lord.

Exodus 9:33

9:33 So Moses left Pharaoh, went out of the city, and spread out his hands to the Lord, and the thunder and the hail ceased, and the rain stopped pouring on the earth.