Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates this statement of the Noble Prophet (peace and blessings be upon him): "The imam has been appointed so that he may be followed. Do not differ with him. When he says the takbir, you also say the takbir, and when he recites, you remain silent. When he says 'ghayril maghdubi 'alayhim wa la-d-dallin', you say 'Ameen'. When he goes into ruku', you also go into ruku'. When he says 'Sami' Allahu liman hamidah', you say 'Rabbana lakal hamd'. When he goes into sajdah, you also go into sajdah. When he performs the prayer sitting, then all of you also perform the prayer sitting." The narrator of this narration, Isma'il bin Aban (may Allah have mercy on him), is weak.