Absence Of Specification For Imam
“The prayer-leader will always loudly pronounce اللهُ أكْبَر, سَمِعَ اللهُ لِمَنْ حَمِدَهُ and السَّلاُمُ عَلَيكُمْ وَ رَحْمَتُ اللهِ. In the first two rakat of the maghrib and isha prayers, and in both rakat of the fajr, Friday and id prayers, the recital shall be loud. The recital shall always be silent in the third rakat of maghrib and in the third and fourth of the ‘isha prayer. In the zuhr and ‘asr prayers, the recital shall be silent in all the rakat.” (Excerpt from Meezan’s English Rendering) ___ Link : Utterances of the Prayer