Genesis 47:26 in the World English Bible
Joseph made it a statute concerning the land of Egypt to this day, that Pharaoh should have the fifth. Only the land of the priests alone didn’t become Pharaoh’s.
Context
25 And they said, Thou hast saved our lives: let us find grace in the sight of my lord, and we will be Pharaoh’s servants.
26 And Joseph made it a law over the land of Egypt unto this day, that Pharaoh should have the fifth part; except the land of the priests only, which became not Pharaoh’s.
27 And Israel dwelt in the land of Egypt, in the country of Goshen; and they had possessions therein, and grew, and multiplied exceedingly.