Bereshis 47:24-26

Orthodox Jewish Bible

²⁴ And it shall come to pass in the tevu’ot, that ye shall give the fifth part unto Pharaoh, and four parts shall be your own, for zera of the sadeh, and for your ochel, and for them of your batim, and for food for your children.

²⁵ And they said, Thou hast saved our lives; let us find chen (grace, favor) in the sight of adoni, and we will be avadim to Pharaoh.

²⁶ And Yosef made it a chok over Eretz Mitzrayim unto this day, that Pharaoh should have the fifth part, except the admat hakohanim only, which became not Pharaoh’s.