Marvel ye that there should come unto you a Reminder from your Lord by means of a man among you, that he may warn you, and that ye may keep from evil, and that haply ye may find mercy.
Times are computed by method; your mosque's timetable governs the adhan. Every text carries its source and grade. Nothing here is a fatwa, a prediction, or a substitute for a doctor: your own scholar decides what is contested, and the tradition itself says the practice is alongside treatment, never instead of it.