Genesis 32:33 "Therefore the children of Israel shall not eat the sinew of the thigh-vein"

When Jacob fought with the angel, (see Genesis 32), the angel pushed his hip out of place.

Despite this wound, Jacob continued his battle with the angel and forced the angel to admit defeat.

This Negative Mitzvah commemorates that victory.

On the hind part of an animal, there is a large main nerve running down the back of its leg. This is called the Gid-HaNasheh.

Before we eat meat from this part of the animal, we must remove that nerve. Since it is difficult to do this, many Jews avoid eating the meat that comes from that area.