Is it considered disbelief not to be convinced of the prohibition of something for which there is Shar'i evidence, or not to be convinced of the wisdom of a Qur'anic verse or a Prophetic Hadith, despite believing in both? And is the presence of doubts or questions in one's creed or faith, and the desire to inquire about them, considered disbelief?

A Muslim must obey Allah's command and His law, even if the wisdom behind it is hidden from them. It is not permissible for them to abandon a ruling on the pretext of not being convinced, for Allah Almighty says: "It is not for a believing man or a believing woman, when Allah and His Messenger have decided a matter, that they should have any option in their decision."

If a Muslim is not convinced by a specific fatwa, they are allowed to ask someone other than the mufti. If they are afflicted with whispers or doubts and ask about them, this is not disbelief; rather, it is a correct action, as long as they do not exaggerate in their questioning.