حدثنا أحمد بن محمد بن عبد الرحمن المقري، قال: حدثنا أبو عمرو محمد بن جعفر المقري الجرجاني، قال،: حدثنا أبو بكر محمد بن الحسن الموصلي ببغداد، قال: حدثنا محمد ابن عاصم الطريفي، قال: حدثنا عباس بن يزيد بن الحسن الكحال مولى زيد بن علي، قال: حدثني أبي، قال: حدثني موسى بن جعفر، عن أبيه جعفر بن محمد، عن أبيه محمد بن علي، عن أبيه علي بن الحسين عليهم السلام، قال: الامام منا لا يكون إلا معصوما وليست العصمة في ظاهر الخلقة فيعرف بها ولذلك لا يكون إلا منصوصا. فقيل له: يا ابن رسول الله فما معنى المعصوم؟ فقال: هو المعتصم بحبل الله  ، وحبل الله هو القرآن لا يفترقان إلى يوم القيامة، والامام يهدي إلى القرآن والقرآن يهدي إلى الامام، وذلك قول الله عز وجل: " إن هذا القرآن يهدي للتي هي أقوم   ".
1.	We were told by Ahmad bin Muhammed bin Abdul-Rahman al-Maqarri, that he said: We were told by Abu Amru and Muhammed bin Ja’far al-Maqarri al-Jarjani, that he said: We were told by Abu Bakr, Muhammed bin Hasan al-Mosuli, in Baghdad, that he said: We were told by Muhammed ibn ‘Asim al-Turayfi, that he said: We were told by Abbas bin Yazid bin Hasan al-Kahhal, the servant of Zaid bin Ali, that he said: I was told by my father, that he said: I was told by Musa bin Ja’far, from his father, Ja’far bin Muhammed, from his father, Muhammed bin Ali, from his father, Ali bin Hussain, peace be upon him, that he said: The Imam from us is not but Infallible. Infallibility is not in the apparent disposition by which one is recognized, and therefore, he is not but affirmed. It was said to him: O son of Allah’s Messenger, then what is the meaning of an Infallible? He said: It is he who adheres to the Rope of Allah, and the Rope of Allah is the Qur’an; they do not separate until the Day of Resurrection. The Imam guides to the Qur’an, and the Qur’an guides to the Imam. That is the saying of Allah, Exalted and Glorious is He: «Indeed, this Qur’an guides to that which is more upright.» (17:9)