Does a person fall into disbelief if doubts assail their heart due to some verses and the method of Quranic preservation, even while uttering the Two Testimonies before sleep?

One should not succumb to doubts raised by oneself or others, for the verse "He found it setting in a muddy spring" does not pose a problem. The error lies in misunderstanding the Arabic language and its eloquence, which describes the sunset as it appears to the observer. Dhul-Qarnayn saw the sun setting in a muddy spring, just as anyone on the seashore would see it. This is not a definitive report from the Quran stating that this is its astronomical description; rather, it is a description of what Dhul-Qarnayn saw. Ibn Kathir affirmed this by saying: "He saw it as if it were setting in the sea."

As for the movement of meteors, no scientist claims to have an absolute explanation for it, and the Quran did not deny the existence of other causes for the appearance of meteors besides the stoning of devils.

Faith is based on belief in the unseen, and this does not contradict natural causes. The universe contains both unseen and natural causes, and the human intellect is incapable of explaining many phenomena, such as death. The Permanent Committee for Issuing Fatwas has affirmed that the Quran does not contradict science, and that what is mentioned in the Quran about meteors does not conflict with their cosmic causes, because the Quran did not limit the benefits of stars or the causes of meteors to specific matters.