Is it permissible for a woman to massage her vagina to please her husband without ejaculation, especially since Sheikh Sayyid Sabiq defined masturbation as "the ejaculation of semen by any means whatsoever," and you have issued a fatwa permitting a woman to massage her breasts?

The forbidden masturbation is the ejaculation of semen without intercourse or direct contact with the wife. This includes deriving pleasure from fondling the sexual organs, even if semen is not ejaculated, based on His (Allah'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 – But whoever seeks beyond that, then those are the transgressors." As for a husband masturbating with his wife's hand or any part of her body, it is permissible, because it falls within the permissible enjoyment of her. Scholars have explicitly stated its permissibility, and the Prophet, peace and blessings be upon him, used to engage in direct contact with his wives while they were menstruating. Sayyid Sabiq's discussion about masturbation invalidating the fast does not mean it is inherently forbidden in the context of the present discussion.