What Should An Imam Do If He Has Not Recited A Surah Or Some Verses After Fatiha In The First Two Rakats Of Fardh Prayers?

What should an imam do if he has not recited a surah or some verses after Fatiha in the first two rakats of fardh prayers?

It is wajib to recite a bit more (dhamm surah, i.e. additional surah) from the Qur’an after Fatiha in the first two rakats of prayers . It is a sin not to perform wajibs deliberately while not performing or delaying them by forgetfulness is not a sin, but it requires performing sajdah al-sahw at the end of the prayer. Accordingly, if an imam does not recite a surah or some verses form the Qur’an after Fatiha in the first two rakats of fardh prayers with four or three rakats , he needs to perform sajdah al-sahw at the end of the prayer whether or not he recites these surahs or verses in the third and fourth rakats after Fatiha because he has delayed or nor performed a wajib of the prayer (Kasani, Bada’i, I, 166; Marghinani, al-Hidayah, II, 70,71).

Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWA