Two instances can be cited in this regard.

Two instances can be cited in this regard. Caliph Ma'moon offered his successorship to Imam Reza (a.s.). The latter declined it politely and took no part in the state affairs. Subsequently, the Imam was addressing a religious session in which his brother, Zeid bin Musa bin Ja'far, who had risen at Madina against the Caliphate and was suppressed and pardoned by Ma'moon, was present. Imam Reza (a.s.) noticed his brother referring to himself and the Imam as "We of the Prophet's…