What is the recommended method when there are multiple muezzins?
Chapter on Adhan
Al-Mughni
Book of Prayer
Primary text
If the call can be heard by one person, the recommended practice is for the muezzins to deliver the call one after the other, following the practice of the Prophet's muezzins.
Supporting text
If the announcement cannot be accomplished by one person, they may call based on what is necessary. If multiple muezzins are calling from separate minarets, it is permissible according to Ahmad. If there is a fear that calling sequentially will cause the beginning of the prayer time to be missed, they may all call at once.