Exodus 5:9-11

9Let even heavier work be laid upon the men, so that they must labor, paying no attention to deceptive words.”

10Then the slave masters of the people went out, along with their officers, and they spoke to the people saying: “This is what Pharaoh says: I will not give you straw.

11Go and get straw for yourselves wherever you can find it, for there will be no reduction of your work.”