Exodus 5:8-12

And the tale of the bricks, which they did make heretofore, ye shall lay upon them; ye shall not diminish ought thereof: for they be idle; therefore they cry, saying, Let us go and sacrifice to our God.

Let there more work be laid upon the men, that they may labour therein; and let them not regard vain words.

And the taskmasters of the people went out, and their officers, and they spake to the people, saying, Thus saith Pharaoh, I will not give you straw.

Go ye, get you straw where ye can find it: yet not ought of your work shall be diminished.

So the people were scattered abroad throughout all the land of Egypt to gather stubble instead of straw.