The LORD then said to Moses: Stretch out your hand toward the sky, that hail may fall upon the entire land of Egypt, on human being and beast alike and all the vegetation of the fields in the land of Egypt. So Moses stretched out his staff toward the sky, and the LORD sent forth peals of thunder and hail. Lightning flashed toward the earth, and the LORD rained down hail upon the land of Egypt.
Exodus 9:22–23