Genesis 47:24-26 Darby Translation (DARBY)
24 And it shall come to pass in the increase that ye shall give the fifth to Pharaoh, and the four parts shall be your own, for seed of the field, and for your food, and for them of your households, and for food for your little ones.
25 And they said, Thou hast saved us alive. Let us find favour in the eyes of my lord, and we will be Pharaoh's bondmen.
26 And Joseph made it a law over the land of Egypt to this day, [that] the fifth should be for Pharaoh, except the land of the priests: theirs alone did not become Pharaoh's.