السلام عليكم ورحمة الله وبركاته ‎ أحسنَ اللهُ إليك If I prayed the Sunnah of Fajr at home and then go to the mosque, do I have to pray Tahiyyat al-Masjid, or should I sit down? And after the Adhān (since they call it 30 min later than the actual time), do I pray two rak‘ahs, or do I remain seated

Ustadh AbdulAziz al-Haqqan

Since u prayed the sunnah at home, when u enter the masjid u pray 2 rakas before sitting down. There is also 2 rakas between the athan and iqamah that u can pray if u wanted to and u can remain seated as well.