And the king is Isa bin Musa, just as it occurred in the book of “[The Qarmatians]” by its Ismaili author Arif Thamir, what this is its text: “He said: And whatever the case may be, Imam al-Sadiq Ja'far bin Muhammad, in addition to all that we mentioned, was upon a great side of political acumen and diplomacy,

so he did not expose his personality to danger, and we see him rejecting the caliphate when it is offered to him so that he does not clash with the Abbasids, and he rejects the announcement of the revolution against them so that there does not reach him from them what reached his cousin Muhammad bin Abdullah bin al-Hasan, the Pure Soul, and he announces his exoneration from his student Abu al-Khattab out of dissimulation in order to please the enthusiastic public opinion, etc.”