Book of Jasher 73:1
In the fifty-fifth year of the reign of Pharaoh king of Egypt, that is in the hundred and fifty-seventh year of the Israelites going down into Egypt, reigned Moses in Cush.
In the fifty-fifth year of the reign of Pharaoh king of Egypt, that is in the hundred and fifty-seventh year of the Israelites going down into Egypt, reigned Moses in Cush.