Question:

What was the opinion of the scholar Al-Majlisi about infallibility?

Answer:

Muhammad Baqir Al-Majlisi writes: “Our companions among the followers of the Imams (a.) agreed on the infallibility of the Prophets and Imams (a.) in view of the small and great sins committed out of intention, error or forgetfulness, both before the prophethood and leadership, and afterwards, and much more likely from the time of their birth until their return to God, and no one has a difference of opinion in this except As-Saduq, Muhammad Ibn Babawaih and his teacher Ibn Al-Walid, God sanctify their souls, because they considered forgetfulness by God permissible, but not forgetfulness by Satan and it may be that their external position, due to their known background, does not evade agreement. As for forgetting in matters outside of the duties and prohibitions, such as what is permitted and frowned upon, most of our companions also express the agreement that it is excluded in relation to the prophets and imams (a.).” [Bihar-ul-Anwar, Volume 17 page 108]

قال شيخ الإسلام المجلسي رضي الله عنه: أن أصحابنا الإمامية أجمعوا على عصمة الأنبياء والأئمة صلوات الله عليهم من الذنوب الصغيرة والكبيرة عمدا وخطأ ونسيانا قبل النبوة والإمامة وبعدهما: بل من وقت ولادتهم إلى أن يلقوا الله سبحانه، ولم يخالف فيه إلا الصدوق محمد بن بابويه وشيخه ابن الوليد قدس الله روحهما فجوزا الاسهاء من الله تعالى، لا السهو الذي يكون من الشيطان، ولعل خروجهما لا يخل بالاجماع، لكونهما معروفي النسب، وأما السهو في غير ما يتعلق بالواجبات و المحرمات كالمباحات والمكروهات فظاهر أكثر أصحابنا أيضا الاجماع على عدم صدوره عنهم