The Book of Prayer
Bulugh al-Maram #214
كتاب الصلاة
عَنْ أَبِي مَحْذُورَةَ - رضى الله عنه - «أَنَّ اَلنَّبِيَّ - صلى الله عليه وسلم -عَلَّمَهُ اَلْآذَانَ, فَذَكَرَ فِيهِ اَلتَّرْجِيعَ» أَخْرَجَهُ مُسْلِمٌ. وَلَكِنْ ذَكَرَ اَلتَّكْبِيرَ فِي أَوَّلِهِ مَرَّتَيْنِ فَقَطْ
Narrated Abu Mahdhura (RA):
The Prophet (ﷺ) taught him the Adhan (call to prayer) and he (the narrator) mentioned the Tarji' in it.
[Muslim reported it, but mentioned the phrase (Takbir) “Allah is the Most Great” at its beginning just twice.
عَنْ أَبِي مَحْذُورَةَ - رضى الله عنه - "أَنَّ اَلنَّبِيَّ - صلى الله عليه وسلم -عَلَّمَهُ اَلْآذَانَ, فَذَكَرَ فِيهِ اَلتَّرْجِيعَ" أَخْرَجَهُ مُسْلِمٌ. وَلَكِنْ ذَكَرَ اَلتَّكْبِيرَ فِي أَوَّلِهِ مَرَّتَيْنِ فَقَطْ
The Prophet (ﷺ) taught him the Adhan (call to prayer) and he (the narrator) mentioned the Tarji' in it. [Muslim reported it, but mentioned the phrase (Takbir) "Allah is the Most Great" at its beginning just twice.
— Bulugh al-Maram, Hadith 214