Missing a portion of Surah Fatiha or At-Tahiyyaat in Salaah
Q: If a person because of some disturbance missed an Aayah in Surah Faatihah, or one sentence in his At-Tahiyyat, does he have to make Sajdah-e-Sahw? To what extent is the Surah Faatihah and At-Tahiyyat Waajib?