Leviticus 15:33

And of her that is sick of her flowers, and of him that hath an issue, of the man, and of the woman, and of him that lieth with her that is unclean.

Cross-references

Leviticus 15:19-30 provides the detailed laws for menstrual impurity that are summarized in this concluding verse.

Leviticus 15:24 specifically addresses lying with a menstruating woman, which is one of the cases mentioned in this summary.

Leviticus 20:18 prescribes the penalty for lying with a menstruating woman, expanding on the uncleanness laws summarized here.