Prayer (Kitab Al-Salat): Details of Commencing Prayer 
Dawud :: Book 3 : Hadith 908
Narrated Ali ibn AbuTalib:
The Apostle of Allah (peace_be_upon_him) said: Ali, do not instruct the imam during the prayer.
Prayer (Kitab Al-Salat): Details of Commencing Prayer
Dawud :: Book 3 : Hadith 908
Narrated Ali ibn AbuTalib:
The Apostle of Allah (peace_be_upon_him) said: Ali, do not instruct the imam during the prayer.