This is the same Shaytaan al Taq who told Imam Zayd (as) that okay for the Rafidah to withdraw from his revolt. He then adds that Imam Jafar (as) gave him and Rafidah the permission do so. On top of that he claims that Imam Jafar (as) praised him for refuting Imam Zayd (as).
The late Kulayni had also quoted a discussion between Mu'min al-Taq and Zayd from some of the companions of Imam, Ahmad Ibn Muhammad Ibn 'Isa, 'Ali Ibn Hakam, Aban Ibn Taghlib and Mu'min al-Taq himself.
He said, “Hiding himself from the public, Zayd asked me whether I could see him. When I went to see him, he said, “O Abu Ja’far it seems that your way is different from ours. Don't you like to join us?”
“If your brother or your father were instead of you, I would do so”, I replied.
Zayd said, “I want to rise up and fight with these people. I also want you to join me”.
“May I be sacrificed to you! I can not do this,” I said.
“Are you withholding your life from me”, Zayd said.
I said, “I will die only once. If there is another proof for Allah on earth other than you, whosoever joins you instead of him, shall be subjugated and if there is no proof for him, it will make no difference to him whether he joins you or not.”
Zayd said, “O, Abu Ja’far, When my father and I were eating food with each other, my father made it cool for me to eat. While I was treated so kindly, you tell me now that the hellfire will not have mercy on me. How is it possible for my father to tell you about (the proof) while I am not aware of it at all?”
I said to him, “He did not tell you anything about it since he was afraid that you might not approve of it and meet the hell fire. But your father told me that if I accepted him, I would behave him well. May I be sacrificed to you, are you superior to the prophets?”
“The prophets”, he said.
I said, “Jacob told Josef,
قَالَ يَا بُنَيَّ لَا تَقْصُصْ رُؤْيَاكَ عَلَى إِخْوَتِكَ فَيَكِيدُوا لَكَ كَيْدًا إِنَّ الشَّيْطَانَ لِلْإِنسَانِ عَدُوٌّ مُبِينٌ.
“Alas! O son, he said, reveal not your dream to brothers for they fall in envy of you.”
Your father also hid the truth from you since he was afraid of you”.
Zayd said, “Your master, he referred to Imam as-Sadiq (a), had told me that I would be killed in Medina and hung in Kunasa. He has a book in which there is the news of my martyrdom”.
Mu'min al-Taq said, “Thereafter, I went to Medina and informed Imam about what had happened between us, praising me for what I had done, Imam said that I had closed all ways of reasoning to him