Exodus 9:8-10

Amplified Bible, Classic Edition

⁸ The Lord said to Moses and Aaron, Take handfuls of ashes or soot from the brickkiln and let Moses sprinkle them toward the heavens in the sight of Pharaoh.

⁹ And it shall become small dust over all the land of Egypt, and become boils breaking out in sores on man and beast in all the land [occupied by the Egyptians].

¹⁰ So they took ashes or soot of the kiln and stood before Pharaoh; and Moses threw them toward the sky, and it became boils erupting in sores on man and beast.