Answered by Shaykh Faraz Rabbani
Is a woman required to have a full bath if she has an orgasm but their has been no contact between the private parts of the man, only touching each other patienetly.
Answer:
Walaikum assalam wa rahmatullah,
I pray this finds you in the best of health and spirits.
Yes, ghusl is required after ejaculation, whether through permissible or sinful means (e.g. masturbation), and also if it takes place during sleep. [ Shurunbulali, Maraqi al-Falah ]
Faraz Rabbani