SHAFAQNA – Without a doubt, the Prophet of Islam (PBUH) is the role model for all infallible Imams in every aspect of their life and behaviour. It can be said with absolute certainty that there is only one true original Islamic teaching, both on personal and social levels and this will remain until the Day of Judgment. Imam Sadeq (AS) said: The Halal of the Prophet Mohammad’s (PBUH) religion will be Halal until the Day of Judgment and the Haram of this religion (Islam) will remain Haram until the Day of Judgment .
That is why, after the passing away of the Prophet (PBUH), Ahlul Bait (AS) are the only real protectors of the values of the religion and the divine culture. They adopt policies according to the necessities of the time but based on Prophet’s (PBUH) teaching. For example, the content of the speech by Imam Hassan (AS) in the presence of Moawiyeh or the cultural campaign by Imam Reza (AS) at their times, are some of the manifestations of the tradition of the prophet of Allah (SWT).
 Kafi, Vol. 1, page 458.