Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
abudawud:1090Muḥammad b. Yaḥyá b. Fāris > Yaʿqūb b. Ibrāhīm b. Saʿd from my father > Ṣāliḥ > Ibn Shihāb > al-Sāʾib b. Yazīd Ibn Ukht Namir

There was no other mu'adhdhin of the Messenger of Allah ﷺ. He then narrated the tradition which is incomplete.  

أبو داود:١٠٩٠حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى بْنِ فَارِسٍ حَدَّثَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ بْنِ سَعْدٍ حَدَّثَنَا أَبِي عَنْ صَالِحٍ عَنِ ابْنِ شِهَابٍ أَنَّ السَّائِبَ بْنَ يَزِيدَ ابْنَ أُخْتِ نَمِرٍ

أَخْبَرَهُ قَالَ وَلَمْ يَكُنْ لِرَسُولِ اللَّهِ ﷺ غَيْرُ مُؤَذِّنٍ وَاحِدٍ وَسَاقَ هَذَا الْحَدِيثَ وَلَيْسَ بِتَمَامِهِ