Deuteronomy 22:24

Now the sons of Jacob came in from the field when they heard it; and the men were grieved, and they were very angry because he had done a disgraceful thing in Israel by lying with Jacob’s daughter, for such a thing ought not to be done.

‘Now if a man lies sexually with a woman who is a slave assigned to another man, but who has in no way been redeemed nor given her freedom, there shall be punishment; they shall not, however, be put to death because she was not free.

“For that would be lewdness; Moreover, it would be an iniquity punishable by judges.

And Joseph her husband, being a righteous man and not wanting to disgrace her, planned to send her away secretly.