Is it considered a clear (or grave) لحن (mistake in recitation) if the Imam pronounces the letter Nūn with a sukūn (silent), the letter ʻAyn with a fatḥa (short 'a' sound), and the letter Bāʼ with a sukūn (silent) in the word (نعبد - naʻbudu)? And what is the ruling on pronouncing the letter Nūn with a kasra (short 'i' sound) in (أنعمت - anʻamta)? And what is the meaning of (إياك - iyyāka) without the shaddah (doubling) on the Yāʼ?

Silencing the letter nun, opening the letter 'ayn, and silencing the letter ba in (na'budu - we worship), and vocalizing the letter nun with a kasra (instead of a fathah) in (an'amta - You have bestowed favor) are considered obvious mistakes (lahn jali) that alter the meaning. Omitting a shaddah (tashdeed) from Al-Fatihah prevents the recitation from being valid, such like one who lightens the yaa' in (Iyyaka - You alone), because its meaning then changes to "your light" or "your sun." This is the view of the majority of scholars.