Performing nafl salaah before the fardh of Fajr
Q: After the Fajr Azaan one is only allowed to perform the 2 Sunnats. If we performed our 2 Sunnats of Fajr after the Azaan at home then when we enter the Masjid:
1. Can we perform 2 Rakaats Tahiyyatul Masjid or will it fall away?
2. Can we perform other Nafl Salaah during this time before the Fardh Salaah commences?