Is it permissible for the wife to masturbate with her husband's hand during menstruation?

It is permissible for spouses to enjoy each other in any way, as long as it does not involve intercourse during menstruation or anal intercourse. There is no harm in mutual masturbation by hand, based on the Almighty's saying: "And those who guard their private parts, except from their wives or those their right hands possess, for indeed, they are not to be blamed." However, if the wife is menstruating, her husband should not masturbate her by hand directly, but rather through a barrier, to avoid direct contact with impurity.