Hadith 2:35
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