Genesis 32:25

32:25 When he saw that he didn't prevail against him, he touched the hollow of his thigh, and the hollow of Jacob's thigh was strained, as he wrestled.
-World English Bible

Other Translation

32:25 And when he saw that he prevailed not against him, he touched the hollow of his thigh; and the hollow of Jacob's thigh was out of joint, as he wrestled with him.
-King James Version