سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 652
The Book of the Adhan (The Call to Prayer)
The Final Words Of The Adhan
أَخْبَرَنَا سُوَيْدٌ، قَالَ حَدَّثَنَا عَبْدُ اللَّهِ، عَنْ يُونُسَ بْنِ أَبِي إِسْحَاقَ، عَنْ مُحَارِبِ بْنِ دِثَارٍ، قَالَ حَدَّثَنِي الأَسْوَدُ بْنُ يَزِيدَ، عَنْ أَبِي مَحْذُورَةَ، أَنَّ آخِرَ الأَذَانِ، لاَ إِلَهَ إِلاَّ اللَّهُ .
It was narrated that Muharib bin Dithar said: "Al-Aswad bin Yazid narrated to me from Abu Mahdhurah that the final words of the Adhan are: 'La ilaha illahha (there is none worthy of worship except Allah).'"
Sunan an-Nasa'i, 652Sahih (Darussalam)