Have they not seen how We have appointed the night that they may rest therein, and the day sight-giving? Lo! therein verily are portents for a people who believe.
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.