Leviticus 18:15

The nakedness of thy daughter-in-law shalt thou not uncover: she is thy son's wife; thou shalt not uncover her nakedness.

Leviticus 20:12

And if a man lie with his daughter-in-law, both of them shall certainly be put to death: they have wrought confusion; their blood is upon them.

Genesis 38:26

And Judah acknowledged them, and said, She is more righteous than I, because I have not given her to Shelah my son. And he knew her again no more.

Ezekiel 22:11

And one hath committed abomination with his neighbour's wife; and another hath lewdly defiled his daughter-in-law; and another in thee hath humbled his sister, his father's daughter.

Genesis 38:18-19

And he said, What pledge shall I give thee? And she said, Thy signet, and thy lace, and thy staff which is in thy hand. And he gave it her, and went in to her; and she conceived by him.

Treasury of Scripture Knowledge

Summary

Thou shalt not uncover the nakedness of thy daughter in law: she is thy son's wife; thou shalt not uncover her nakedness.

Bible References

General references

Leviticus 20:12
And if a man lie with his daughter-in-law, both of them shall certainly be put to death: they have wrought confusion; their blood is upon them.
Genesis 38:18
And he said, What pledge shall I give thee? And she said, Thy signet, and thy lace, and thy staff which is in thy hand. And he gave it her, and went in to her; and she conceived by him.
Ezekiel 22:11
And one hath committed abomination with his neighbour's wife; and another hath lewdly defiled his daughter-in-law; and another in thee hath humbled his sister, his father's daughter.