Exodus 9:9-11

New Living Translation

⁹ The ashes will spread like fine dust over the whole land of Egypt, causing festering boils to break out on people and animals throughout the land.”

¹⁰ So they took soot from a brick kiln and went and stood before Pharaoh. As Pharaoh watched, Moses threw the soot into the air, and boils broke out on people and animals alike. ¹¹ Even the magicians were unable to stand before Moses, because the boils had broken out on them and all the Egyptians.