ANSWER:
If you prayed sunnah of fajr at home, you have to pray 2 rakahs when you enter the masjid, if you want to sit down.
If you go and pray the sunnah in the masjid then it suffices for both.
ANSWER:
If you prayed sunnah of fajr at home, you have to pray 2 rakahs when you enter the masjid, if you want to sit down.
If you go and pray the sunnah in the masjid then it suffices for both.