And Jacob lifted up his eyes and looked, and behold, Esau was coming, and four hundred men with him. So he divided the children among Leah and Rachel and the two maids.
These he delivered into the hand of his servants, every drove by itself, and said to his servants, “Pass on before me, and put a space between drove and drove.”
Therefore to this day the Israelites do not eat the sinew of the hip which is upon the hollow of the thigh, because he touched the hollow of Jacob's thigh on the sinew of the hip.