The one who is ignorant of what the imam should teach is not fit for imamate because the imam is to be followed while he does not know or learn, so it is not permissible for someone of this quality to lead him because he does not know what he is obligated to do and what is not obligatory, so the one he follows is misguided and he is not in the position of an obligatory prayer behind a voluntary prayer. If the imam performs a voluntary prayer and the person praying behind him disagrees with his intention, then he does not disagree with him regarding what is obligatory in the prayer, whether it is a voluntary prayer or an obligatory one, because it includes obligations and sunnahs, and the pillars of it are all obligatory and their sunnahs are likewise in the voluntary and obligatory prayer. The voluntary prayer, which is the imam, does nothing except what he is required to do from the pillars of his prayer, such as Bowing, prostrating, etc., as well as its Sunnahs, and it is as