Genesis 32:24-26

And Jacob was left alone, and a Man wrestled with him until daybreak. And when [the Man] saw that He did not prevail against [Jacob], He touched the hollow of his thigh; and Jacob's thigh was put out of joint as he wrestled with Him. Then He said, Let Me go, for day is breaking. But [Jacob] said, I will not let You go unless You declare a blessing upon me.