Leviticus 19:20

If a man has sexual intercourse with a female slave who is engaged to another man and if her freedom was never bought or given to her, they should not be put to death. He will only pay a fine because she is a slave.

Deuteronomy 22:23-24

Suppose there is a girl who is a virgin engaged to a man, and another man has sexual relations with her.

Exodus 21:20-21

If a slave owner takes a stick and beats his slave, whether male or female, and the slave dies on the spot, the owner is to be punished.

Treasury of Scripture Knowledge

Summary

And whosoever lieth carnally with a woman, that is a bondmaid, betrothed to an husband, and not at all redeemed, nor freedom given her; she shall be scourged; they shall not be put to death, because she was not free.

Betrothed to an husband

Bible References

Betrothed to an husband

Exodus 21:20
If a slave owner takes a stick and beats his slave, whether male or female, and the slave dies on the spot, the owner is to be punished.
Deuteronomy 22:23
Suppose there is a girl who is a virgin engaged to a man, and another man has sexual relations with her.