A Baraita taught that the Serah the daughter of Asher mentioned in both and survived from the time Israel went down to Egypt to the time of the wandering in the Wilderness. The Gemara taught that Moses went to her to ask where the Egyptians had buried Joseph. She told him that the Egyptians had made a metal coffin for Joseph. The Egyptians set the coffin in the Nile so that its waters would be blessed. Moses went to the bank of the Nile and called to Joseph that the time had arrived for God to deliver the Israelites, and the oath that Joseph had imposed upon the children of Israel in had reached its time of fulfillment. Moses called on Joseph to show himself, and Joseph's coffin immediately rose to the surface of the water.