Genesis 47:18-20

18And when that year was ended, they came to him the following year and said to him, "We will not hide from my lord that our money is all spent. The herds of livestock are my lord's. There is nothing left in the sight of my lord but our bodies and our land.

19Why should we die before your eyes, both we and our land? Buy us and our land for food, and we with our land will be servants to Pharaoh. And give us seed that we may live and not die, and that the land may not be desolate."

20So Joseph bought all the land of Egypt for Pharaoh, for all the Egyptians sold their fields, because the famine was severe on them. The land became Pharaoh's.