Genesis 47:24-26 New Life Version (NLV)
24 At gathering time, you must give a fifth part to Pharaoh. Keep the rest to have seeds for the field, and to feed yourselves and your children and those of your houses.”
25 So they said, “You have saved our lives! Let us find favor in the eyes of my lord. We will be Pharaoh’s servants.” 26 Joseph made it a law in the land of Egypt that Pharaoh should have the fifth part. It is a law to this day. Only the land of the religious leaders did not become Pharaoh’s.