Abu Mahdurah reported: The Messenger of Allah ﷺ 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.
Hadith Referenceسنن ابي داود / كتاب الصلاة / 503
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح, والحديث السابق شاھد له، ورواه ابن ماجه (708) وسنده حسن
Hadith Takhrij« انظر حديث رقم: 500، (تحفة الأشراف: 12169) (صحیح) »