What about performing Sunnat (Salah) during salat-e-fazr (fardh) in the mosque
Answer
(Fatwa: 206/191=B/1429)
It is mentioned in Hadith:
إذا أقیمت الصلاۃ فلا صلاۃ إلا المکتوبۃ
When the fardh salah is being performed, one should not perform any salah (like sunnah and nafl) except the fardh. Yet, it may be allowable if it is performed behind any partition or wall.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband