And from him, from Muhammad ibn al-Husayn, from Abu Muhammad al-Hajjal, from Hammad ibn ‘Uthman, from Abu Basir: Abu Abdillah عليه السلام said: “It is appropriate for the imam (of prayer) to make audible to those behind him everything that he says, and it is not appropriate for those behind the imam (of prayer) to make anything they say audible to him.”