A:
It is impermissible to have sexual intercourse with one's menstruating wife. He may enjoy her as he likes apart from direct sexual intercourse provided she wears a loincloth. However, if he has vaginal sexual intercourse with her, he has to give half a dinar in charity as a Kaffarah (expiation). The same applies to the wife; if she does so willingly but if forced, she will be exempted from Kaffarah. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.