Genesis 47:26

So Joseph established it as a law concerning land in Egypt--still in force today--that a fifth of the produce belongs to Pharaoh. It was only the land of the priests that did not become Pharaoh's.

(New International Version)

Joseph made it a statute concerning the land of Egypt valid to this day, that Pharaoh should have the fifth; only the land of the priests did not become Pharaoh's.

(New American Standard Bible)

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.

(King James Version)