The Book of the Adhan (The Call to Prayer)
7/15. Chapter:
Adding The Phrase
Sunan an-Nasai
أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، وَعَبْدُ الرَّحْمَنِ، قَالاَ حَدَّثَنَا سُفْيَانُ، بِهَذَا الإِسْنَادِ نَحْوَهُ . قَالَ أَبُو عَبْدِ الرَّحْمَنِ وَلَيْسَ بِأَبِي جَعْفَرٍ الْفَرَّاءِ .
Sufyan narrated a similar report with the same chain. (One of the narrators) (Abu) 'Abdur-Rahman (An-Nasai) said: "It is not Abu Ja'far Al-Farra'."
Reference : Sunan an-Nasa'i 648In-book reference : Book 7, Hadith 23English translation : Vol. 1, Book 7, Hadith 649