Exodus 21:1-3

Young's Literal Translation

21 `And these [are] the judgments which thou dost set before them:

² `When thou buyest a Hebrew servant -- six years he doth serve, and in the seventh he goeth out as a freeman for nought;

³ if by himself he cometh in, by himself he goeth out; if he [is] owner of a wife, then his wife hath gone out with him;