How to Answer the Adhaan – II (Hadith No. 735)
One way to answer the Adhaan is described here. There’s another way according to the Sunnah. It’s more or less the same as the previous one, just a slight change in the answer..
Narrated Abu Umama bin Sahl bin Hunaif:
I heard Muawiya bin Abi Sufyan (repeating the statements of the Adhan) while he was sitting on the pulpit. When the Muadh-dhin pronounced the Adhan saying, “Allahu-Akbar, Allahu Akbar”, Muawiya said: “Allah Akbar, Allahu Akbar.” And when the Muadh-dhin said, “Ash-hadu an la ilaha illal-lah (I testify that none has the right to be worshipped but Allah)”, Muawiya said, “And (so do) I”. When he said, “Ash-hadu anna Muhammadan Rasulullah” (I testify that Muhammad is Allah’s Apostle), Muawiya said, “And (so do) I”. When the Adhan was finished, Muawiya said, “O people, when the Muadh-dhin pronounced the Adhan I heard Allah’s Apostle on this very pulpit saying what you have just heard me saying”.
“And (so do) I” is wa ‘ana (وأنا) in Arabic. Cool, eh? ;)