Is it permissible for a wife to wear clothes that reveal her physical charms in front of her fasting husband during her menstrual period, and is it permissible for her to re-wear the outer clothes she wore during her menstrual period without washing them after purification?

If a woman's wearing of certain clothes during menstruation leads to her husband's temptation and his falling into the haram (intercourse), then it is not permissible for her to do so, because the means to the haram is haram. However, it is permissible for the husband to enjoy his menstruating wife as he wishes, without intercourse. If the husband is observing an obligatory fast, the previous ruling applies. But if it is a voluntary fast, the woman should help him complete his fast and avoid anything that would lead to his breaking it, especially if it is at his request. It is permissible for a woman to wear the clothes she was wearing during menstruation at any time and pray in them, provided no menstrual blood has touched them. If blood has touched them, she should wash them and then pray in them.