Answer:
(Fatwa: 119/88=H/1429)
There is no sin if it happened sometimes due to excessive lust, but it is makrooh (undesirable) to force or make it a habit, as it is mentioned in Fatawa Aalamgiriyah, Bab Al-Karahiyah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
