Exodus 9:4-6

New International Version - UK

⁴ But the Lord will make a distinction between the livestock of Israel and that of Egypt, so that no animal belonging to the Israelites will die.”’

⁵ The Lord set a time and said, ‘Tomorrow the Lord will do this in the land.’ ⁶ And the next day the Lord did it: all the livestock of the Egyptians died, but not one animal belonging to the Israelites died.