Exodus 21:27

And if he should smite out the tooth of his man-servant, or the tooth of his maid-servant, he shall send them away free for their tooth's sake.

And if he smite out his manservant’s tooth, or his maidservant’s tooth; he shall let him go free for his tooth’s sake.

If he strikes out his male servant’s tooth, or his female servant’s tooth, he shall let the servant go free for his tooth’s sake.