Answer:
(Fatwa: 2072/B=1672/tb=1431)
If the mosque is two-storey building and if males perform salah with jama’at in lower part and females in upper part, their salah shall be valid. It is not lawful for them to stand in the same floor without purdah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
