Sunan Abi Dawud Book 2, Hadith 114
The Messenger of Allah (May peace be upon him) taught me the call to prayer (adhan) verbatim; Allah is most great, Allah is most great, Allah is most great, Allah is most great; I testify that there is no god but Allah, I testify that there is no god but Allah; I testify that Muhammad is the Messenger of Allah; I testify that Muhammad is the Messenger of Allah; I testify that there is no god but Allah. I testify that there is no god but Allah; I testify that Muhammad is the Messenger of Allah, I testify that Muhammad is the Messenger of Allah; come to prayer, come to prayer; come to salvation, come to salvation. He used to pronounce “prayer is better than sleep” in the dawn prayer.
The Messenger of Allah (May peace be upon him) himself taught me the call to prayer (adhan). He asked me to pronounce: Allah is most great. Allah is most great. Allah is most great. Allah is most great: I testify that there is no god but Allah. I testify that there is no god but Allah; I testify that Muhammad is the Messenger of Allah, I testify that Muhammad is Messenger of Allah. Then repeat and raise your voice; I testify that there is no god but Allah, I testify that there is no god but Allah ; I testify that Muhammad is the Messenger of Allah; I testify that Muhammad is the Messenger of Allah; come to prayer, come to prayer; come to salvation, come to salvation; Allah is most great. Allah is most great; there is no god but Allah.
Allah is most great, Allah is most great; I testify that there is no god but Allah. He then narrated adhan like the one contained in the tradition transmitted by Ibn Juraij from ‘Abd al-aziz b. ‘abd al-Malik to the same effect. The version Malik b. Dinar has. I asked the son of Abu Mahdhurah, saying: Narrate to me the adhan of your father narrated from the Messenger of Allah (May peace be upon him). He said: Allah is most great, Allah is most great, that is all. Similar is the version narrated by Ja’far b. Sulaiman from the son of Abd Muhdhurah from his uncle on the authority of his grandfather, excepting that he said; Then repeat and raise your voice. Allah is most great. Allah is most great.