Exodus 9:3-5

3the Lord will punish you. He will send a very bad illness on all your animals. Your animals in the fields, your horses, donkeys, camels, cows, sheep and goats will all become very ill.

4But the Lord will make a difference between the animals of the Israelites and the animals of the Egyptians. None of the animals of the Israelites will die.” ’

5The Lord decided when this would happen. He said, ‘Tomorrow I will make this happen in the land of Egypt.’