If a man lies carnally with a slave girl promised to another man but who has not been redeemed or given her freedom, there must be due punishment. But they are not to be put to death, because she had not been freed.
Jewish Publication Society of America Version (JPS1917) - Leviticus 19:20 >And whosoever lieth carnally with a woman, that is a bondmaid, designated for a man, and not at all redeemed, nor was freedom given her; there shall be inquisition; they shall not be put to death, because she was not free.