I want to ask if I ejaculate during fast by own will my fast remain intact? What I have to do now?
بسم الله الرحمن الرحيم
(Fatwa: 1003/764/D=1434)
Your fast shall nullify and qaza shall be wajib. However, no kaffarah (expiation) shall be wajib due to it. And this practice is makrooh tahrimi.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband