32 Therefore to this day the Israelites do not eat the tendon attached to the socket of the hip, because the socket of Jacob’s hip was touched near the tendon.

Read Genesis 32:32 Using Other Translations

Therefore the children of Israel eat not of the sinew which shrank, which is upon the hollow of the thigh, unto this day: because he touched the hollow of Jacob's thigh in the sinew that shrank.
Therefore to this day the people of Israel do not eat the sinew of the thigh that is on the hip socket, because he touched the socket of Jacob's hip on the sinew of the thigh.
(Even today the people of Israel don’t eat the tendon near the hip socket because of what happened that night when the man strained the tendon of Jacob’s hip.)