Read it when you hear the Adhaan

Adhaan is Special announcement , Announced 5 times a day before every prayer. It happens in masjid
You repeat the same what Muazzin says. if he say Allaho akber, you say Allaho akber. if he say Ash-hado Allaa ilaha illallah, You repeat the same with him. Just in one case when he say Hayya Alassalaah and Hayya Alassalaah then you dont repeat it and you say below instead:

English Translation...