Ibn ‘Umar said that in the time of God's Messenger the phrases in the adhan were uttered twice each and in the iqama once each, except for saying, ‘‘The time for prayer has come. The time for prayer has come.”
Abu Mahdhura said that God's Messenger himself taught him how to make the call to prayer, telling him to say, “God is most great. God is most great. God is most great. God is most great. I testify that there is no god but God. I testify that there is no god but God. I testify that Muhammad is God’s Messenger. I testify that Muhammad is God’s Messenger”; then to repeat, “I testify that there is no god but God. I testify that there is no god but God. I testify that Muhammad is God’s Messenger. I testify that Muhammad is God’s Messenger. Come to prayer. Come to prayer. Come to salvation. Come to salvation. God is most great. God is most great. There is no god but God.”
Anas said they mentioned kindling fire and the use of a bell, and mentioned the Jews and the Christians. Then Bilal was ordered to repeat the call to prayer twice and the statement that the time for prayer had come (al-iqama) once. Isma'il1 said that he mentioned it to Ayyub,2 and he said it was correct except regarding the iqama.
(Bukhari and Muslim.)
1. Bukhari (Adhan, 3) gives a shorter form of the tradition than that above, mentioning Ismail b. Ibrahim in his isnad and telling how he made the enquiry of Ayyub.
2. Ayyub b. Abu Tamima.