Exodus 9:4, 6, 26

But the LORD will make a distinction between the livestock of Israel and the livestock of Egypt, so that nothing will die of all that belongs to the sons of Israel.” ’ ”

So the LORD did this thing on the next day, and all the livestock of Egypt died; but of the livestock of the sons of Israel, not one died.

Only in the land of Goshen, where the sons of Israel were, there was no hail.