Exodus 5:4-6

5:4 The king of Egypt said to them, “Moses and Aaron, why do you cause the people to refrain from their work? Return to your labor!” 5:5 Pharaoh was thinking, “The people of the land are now many, and you are giving them rest from their labor.”

5:6 That same day Pharaoh commanded the slave masters and foremen who were over the people: