There is not one of the People of the Scripture but will believe in him before his death, and on the Day of Resurrection he will be a witness against them -
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.