Had they gone forth among you they had added to you naught save trouble and had hurried to and fro among you, seeking to cause sedition among you; and among you there are some who would have listened to them. Allah is Aware of evil-doers.
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.