The Prophet ﷺ taught him this call to prayer, "Allah is the greatest, Allah is the greatest. I bear witness that there is no god but Allah, I bear witness that there is no god but Allah. I bear witness that Muhammad is the Messenger of Allah, I bear witness that Muhammad is the Messenger of Allah." Then he repeats, saying, "I bear witness that there is no god but Allah, I bear witness that there is no god but Allah. I bear witness that Muhammad is the Messenger of Allah, I bear witness that Muhammad is the Messenger of Allah. Come to prayer (twice), come to success (twice)."Ishaq added, "Allah is the greatest, Allah is the greatest. There is no god but Allah."
أن النبي ﷺ علمه هذا الآذان: الله أكبر الله أكبر، أشهد أن لا إله إلا الله، أشهد أن لا إله إلا الله، أشهد أن محمدا رسول الله، أشهد أن محمدا رسول الله ثم يعود فيقول: أشهد أن لا إله إلا الله، أشهد أن لا إله إلا الله، أشهد أن محمدا رسول الله، أشهد أن محمدا رسول الله. حي على الصلاة (مرتين) حي على الفلاح (مرتين) زاد إسحاق: الله أكبر الله أكبر، لا إله إلا الله.
Muslim narrated it in the Book of Prayer (379) from Abu Ghassan Musmai, Malik bin Abdul-Wahid, and Ishaq bin Ibrahim. Abu Ghassan said, "Muaz narrated to us," while Ishaq said, "Muaz bin Hisham, the companion of Dastawai, informed us." He said, my father narrated to me, from Amir Ahwal, from Makhul, from Abdullah bin Muhayriz, from Abu Mahzura, and he related the hadith.I say, there is disagreement over Abu Mahzura's call to prayer regarding whether the takbir was said twice or four times at the beginning of the adhan. As for saying it twice, this is how Muslim narrated it, as you can see, this is how it appears in the existing manuscripts. However, Qadi Iyad said, "In some of the transmission paths of Farsi in Sahih Muslim it occurs as 'four times.'" Nawawi stated this in Sharh Muslim.It appears that an error occurred in the transmission, for a number of narrators reported from Muaz bin Hisham and mentioned the takbir as fourfold in it. Among them is what Abu Awana recorded in his Musnad from Ali bin Madini, and what Bayhaqi recorded (1/391) from Abdullah bin Saeed, and what Nasai recorded (2/405) through the path of Ishaq bin Ibrahim (who is Ibn Rahawayh, the teacher of Muslim). All of these narrated from Muaz bin Hisham with the takbir fourfold.Ibn Qattan said, "The sahih position regarding the aforementioned Amir in this hadith is that it was fourfold. This is how a group narrated it from him, among them Affan, Saeed bin Amir, and Hajjaj. With this, it is confirmed that the adhan consists of nineteen words, as has been reported." End of quote. See Nasb Raya (1/258).Likewise, Abu Dawud recorded it (502) from Hammam (bin Yahya), who said, Amir Ahwal narrated to us, Makhul narrated to me, that Ibn Muhayriz told him that the Messenger of Allah ﷺ taught him the adhan consisting of nineteen words, and the iqama consisting of seventeen words, and he then detailed the adhan. Nasai also recorded it (630) from Hammam bin Yahya through the same chain, except that he contented himself with saying, "The adhan is nineteen words, and the iqama is seventeen words." Then he enumerated Abu Mahzura's version as nineteen and seventeen.Ibn Abdul-Barr said, "The reports about Abu Mahzura differ, since the Messenger of Allah ﷺ taught him the adhan in Makkah in the year of Hunayn. Some reports from him mention the takbir doubled at the beginning of it, while others report it fourfold. The fourfold version comes through narrations of trustworthy, reliable narrators, and this is an addition that must be accepted. The practice among the people of Makkah, among the family of Abu Mahzura, has continued according to this down to our time. This is also found in the hadith of Abdullah bin Zayd concerning the story of the dream. This is the view held by Abu Hanifa, Shafii, and Ahmad." See Nasb Raya (1/258).As for Malik, he held the view that the takbir was doubled. Perhaps among his evidences is the hadith recorded by Abu Dawud (505) from Nafi bin Umar Jumahi, from Abdul-Malik bin Abu Mahzura, who reported that Abdullah bin Muhayriz Jumahi informed him, from Abu Mahzura. Nasai likewise recorded it (629) from Bishr bin Muaz, who said, Ibrahim bin Abdul-Aziz bin Abdul-Malik bin Abu Mahzura narrated to me, who said, my father Abdul-Aziz and my grandfather Abdul-Malik narrated to me, from Abu Mahzura, that the Prophet ﷺ sat him down and dictated the adhan to him word by word. Ibrahim said, "It is like our adhan today." I said to him, "Repeat it for me," and he related something similar, doubling in it, "Allah is greatest."It appears that an error occurred here on the part of the narrators, for the sahih and established report from Abdul-Malik bin Abu Mahzura and Abdullah bin Muhayriz, from Abu Mahzura, is that the takbir was fourfold. This is what the practice in Makkah, among the family of Abu Mahzura, has continued to be, namely nineteen words, with the iqama being seventeen words, as mentioned before. The fourfold takbir has also been established in the hadith of Abdullah bin Zayd.