Asr (Arabic: صلاة العصر) is one of the five daily mandatory Islamic prayers (salah).
The Asr prayer consists of four obligatory cycles, rak'a. As with Dhuhr, if it is performed in congregation, the imam is silent except when announcing the takbir, i'tidal, and taslim.
The muezzin (/m(j)uˈɛzɪn/; Arabic: مُؤَذِّن, romanized: Muʾaḏḏin), also spelled mu'azzin, is the person who proclaims the call to the daily prayer (ṣalāt) five times a day (Fajr prayer, Zuhr prayer, Asr prayer, Maghrib prayer and Isha prayer) at a mosque from the minaret. The muezzin plays an important role in ensuring an accurate prayer schedule for the Muslim community.