What are the sayings of scholars regarding the repentance of one who insults Allah or His Messenger (peace be upon him)? And do those who say that their repentance is not accepted mean that in outward appearance? Is the repentance of one who did so openly, proclaimed it, and fought Islam and Muslims accepted, whether he was a Muslim who apostatized or one who fought Islam? And do those who say that his repentance is not accepted mean that in outward appearance? Is the repentance of one who did so and whose matter did not reach the Imam accepted, if he repented between himself and Allah Almighty? And what is the solution for one who is afflicted with misgivings regarding these matters, such as when Satan comes to him and says, "You have fallen into such things, and there is no repentance for you"?

Slandering Allah and His Messenger is disbelief that expels one from the fold of Islam. The repentance of the slanderer is accepted by the majority of scholars, based on the verse: "Say, 'O My servants who have transgressed against themselves [by sinning], do not despair of the mercy of Allah. Indeed, Allah forgives all sins. Indeed, it is He who is the Forgiving, the Merciful.'" The disagreement regarding the acceptance of repentance is confined to worldly rulings, specifically concerning the execution of the slanderer. However, in the Hereafter, if the repentance is sincere and true, it is accepted. There is no difference in the acceptance of repentance between one who slanders openly and one who slanders secretly, or whether the matter reaches the Imam or not, or between one who is hostile to Islam and one who is not. Repentance is accepted regardless of the magnitude of the crime or the gravity of the sin. Furthermore, obsessive thoughts of slandering are not influential as long as they are mere unwelcome thoughts. One must beware of despairing of Allah's mercy.