The adhan is the call given to announce that it is time for a particular obligatory Salah. Five times a day the adhan is raised from mosques throughout the world.
The person who gives the adhan is called a muadhdhin.

The adhan begins with an affirmation of the supremacy of Allah (God). Then comes the shahadah (profession of faith), which consists of the profession of the Unity of Allah (God), the negation of shirk (polytheism), and the confirmation that Muhammad (peace and blessings be on him) is the Messenger of Allah (God).
And after that, comes the call to the Prayer and to success — our eternal home in Paradise — which also implies our return to the Creator. Each line is repeated for emphasis.

The words of the adhan are as follows:

Allahu Akbar, Allahu Akbar.

(Allah is the Greatest, Allah is the Greatest.)

Allahu Akbar, Allahu Akbar.

(Allah is the Greatest, Allah is the Greatest.)

Ash-hadu alla ilaha illa-llah.

(I bear witness that there is none worthy of worship but Allah.)

Ash-hadu alla ilaha illa-llah.

(I bear witness that there is none worthy of worship but Allah.)

Ash-hadu anna Muhammadar-Rasulullah.

(I bear witness that Muhammad is the Messenger of Allah)

Ash-hadu anna Muhammadar-Rasulullah.

(I bear witness that Muhammad is the Messenger of Allah)

Hayya ‘ala-s-Salah, hayya ‘ala-s-Salah.

(Hasten to the Prayer, hasten to the Prayer.)

Hayya ‘ala-l-falah, hayya ‘ala-l-falah.

(Hasten to real success, hasten to real success)

Allahu Akbar, Allahu Akbar.

(Allah is the Greatest, Allah is the Greatest.)

La ilaha illa-llah

(There is none worthy of worship but Allah.)

In the adhan for the Subh (Dawn) Prayer (also commonly called the Fajr Prayer), the following words are added after Hayya ‘ala-l-falah:

As-Salatu khairun min an-naum, As-Salatu khairun min an-naum.

(Prayer is better than sleep, Prayer is better than sleep.)

The Sunnah (practice of the Prophet) recommends that while the adhan is being called, one should listen attentively and repeat it silently after the muadhdhin, but when he says “Hayya ‘ala-s-Salah” and “Hayya ‘ala-l-falah” one should say:

La hawla wa la quwwata illa billah.

(There is no might or power except with Allah.)

After the adhan, it is recommended to say the following du‘a’ (supplication):

Allahumma rabba hadhihi-d-da‘awati-t-tammati wa-s-Salati-l-qa’imati, ati Muhammadan il-wasilata wa-l-fadilata wa-d-darajata-r-rafî‘ati wa-b‘ath-hu maqamam mahmudan illadhi wa‘adtahu.

(0 Allah, Lord of this most perfect call, and of the Prayer that is about to be established, grant to Muhammad the favor of nearness (to You) and excellence and a place of distinction, and exalt him to a position of glory that You have promised him.)

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