Genesis 47:26 KJV
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.
Genesis 47:26, King James Version
In 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.