Is it possible to interpret the hadith: "Fever is from the blaze of Hell, so cool it with water," or to seek an explanation for it that aligns with fever occurring due to medical reasons? And does this hadith fall under the Prophet’s saying: "If I command you with something concerning your religion, then adhere to it; but if I command you with something from my own opinion, then I am only a human being"?

It is obligatory for a Muslim to submit to the sayings of the Prophet (peace be upon him) and to interpret them in the best possible light. One should not doubt them due to a lack of understanding, for they are revelation and are not subject to error.

There are various interpretations regarding the meaning of the prophetic hadith: "Fever is from the heat of Hell, so cool it with water": 1. That fever is a model from Hell, so that people may learn lessons and take heed from it. 2. It is a simile, likening the severity of fever to the heat of Hell, as a warning to souls about the intensity of the torment of Hellfire. The first interpretation is more plausible.

The fact that fever is from the heat of Hell does not negate its occurrence due to physical causes. As for the hadith: "When I command you concerning something pertaining to your religion, then adhere to it; but when I command you concerning something based on my opinion, then I am only a human being," it clarifies that the Prophet (peace be upon him) exercises ijtihad (independent reasoning) in worldly matters. However, concerning matters of religion, he only speaks from revelation.

This hadith cannot be used to reject other hadiths, such as the hadith: "Fever is from the heat of Hell," for it is a statement from the Prophet (peace be upon him), and there is no room for error in his statements.