Answer:
(Fatwa: 605/405/L=1431)
He will have to offer salah from the time when he starts experiencing wet dream, provided semen is not discharged due to the masturbation, otherwise from that time onward he will have to make qaza of missed salah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
