Imam Muhammad al-Baqir [AS] laid emphasis on the following factors – firstly his choice inherited from his father of political quietism, that is to say his refusal openly to contest rule by the Umayyads. And secondly as a corollary to that a growing emphasis upon the transmission of a unique body of knowledge as constituted the essence of the Imamate. Thirdly a clarification of specific details on which the emergent law of the Shi’ah community differentiated itself from the legal precepts of the surrounding Sunni Community, for example in the call to prayer the inclusion of ‘haya ‘ala khair al-‘aml’ ‘Hasten to the best of deeds’ included by Shi’ah Muslims but omitted by Sunni Muslims – it was Shi’ah belief that it was blocked by the second caliph ‘Umar.
1The period in question is the period three caliphs and his abstention from public or political involvement, and his tenure as the fourth of the rightly guided caliphs (from the Sunni point of view). The obstacles that confronted him - you could talk about the existence of a rival centre of power in Damascus under the auspice of Mu’awiyah, who using the assassination of Uthman the third caliph as a pretext now wished to deny legitimacy to Imam Ali [AS] and refused him his loyalty and his obedience.
1