Is it forbidden for a husband to masturbate at his wife's request, by caressing his chest until he ejaculates, after she refused to lick his penis? Is the wife's refusal of her husband's request forbidden?

It is permissible for the husband to enjoy his menstruating wife, and it is permissible for the husband to masturbate with his wife's hand or any part of her body, provided that he avoids anal intercourse and vaginal intercourse during menstruation and post-natal bleeding (nifas). However, if he masturbates with his own hand, his action is impermissible and is considered forbidden masturbation. Regarding licking the husband's private parts, it is permissible as long as it does not lead to swallowing impurities, but the wife is not obliged to obey him in this matter.