Exodus 9:4, 6, 26

But the LORD will again make a distinction between the livestock of the Israelites and that of the Egyptians. Not a single one of Israel’s animals will die!

And the LORD did just as he had said. The next morning all the livestock of the Egyptians died, but the Israelites didn’t lose a single animal.

The only place without hail was the region of Goshen, where the people of Israel lived.