Exodus 9:9-11

Living Bible

⁹ They will spread like fine dust over all the land of Egypt and cause boils to break out upon people and animals alike, throughout the land.”

¹⁰ So they took ashes from the kiln and went to Pharaoh; as he watched, Moses tossed them toward the sky, and they became boils that broke out on men and animals alike throughout all Egypt. ¹¹ And the magicians couldn’t stand before Moses because of the boils, for the boils appeared upon them too.