The LORD said to Moshe and to Aharon, "Take to you handfuls of ashes of the furnace, and let Moshe sprinkle it toward the sky in the sight of Par`oh.
It shall become small dust over all the land of Mitzrayim, and shall be a boil breaking forth with boils on man and on animal, throughout all the land of Mitzrayim."
They took ashes of the furnace, and stood before Par`oh; and Moshe sprinkled it up toward the sky; and it became a boil breaking forth with boils on man and on animal.
The magicians couldn't stand before Moshe because of the boils; for the boils were on the magicians, and on all the Mitzrim.
The LORD hardened the heart of Par`oh, and he didn't listen to them, as the LORD had spoken to Moshe.