Shemoth (Exodus) 9:18-19

“See, tomorrow about this time I am causing very heavy hail to rain down, such as has not been in Mitsrayim, from the day of its founding until now. And now send, bring your livestock to safety, and all that you have in the field, for the hail shall come down on every man and every beast which is found in the field and is not brought home, and they shall die.’ ”