Narrator names are parsed automatically from the isnad; identity and biographical details are matched from rijal sources (Itqan narrator profiles, muslimscholars.info).
Narrated `Amr bin Maimuin: When Mu`adh arrived at Yemen, he led them (i.e. the people of Yemen) in the Fajr prayer wherein he recited: 'Allah took Abraham as a Khalil.' A man amongst the people said, "(How) glad the mother of Abraham is!" (In another narration) `Amr said, "The Prophet (ﷺ) sent Mu`adh to Yemen and he (led the people) in the Fajr prayer and recited: 'Allah took Abraham as a Khalil. A man behind him said, "(How) glad the mother of Abraham is!"
Abu Mahdhura said that the Messenger of Allah (ﷺ) taught him Adhan like this:Allah is the Greatest, Allah is the Greatest; 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, and it should be again repeated: 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 the prayer (twice). Come to success (twice). Ishaq added: Allah is the Greatest, Allah is the Greatest; there Is no god but Allah