[Machine] The Messenger of Allah, ﷺ , had two mu'adhins (callers to prayer), Bilal and Ibn Umm Maktum, the blind. The Messenger of Allah, ﷺ , said, "Indeed, Bilal calls the adhan at night, so eat and drink until Ibn Umm Maktum calls the adhan." There was nothing between them except the time for one to descend and the other to ascend the minaret. And with this chain of narration, from Ubaid Allah, from Al-Qasim, from Aisha, from the Prophet, ﷺ , the statement is similar.  

كَانَ لِرَسُولِ اللهِ ﷺ مُؤَذِّنَانِ بِلَالٌ وَابْنُ أُمِّ مَكْتُومٍ الْأَعْمَى فَقَالَ رَسُولُ اللهِ ﷺ إِنَّ بِلَالًا يُؤَذِّنُ بِلَيْلٍ فَكُلُوا وَاشْرَبُوا حَتَّى يُؤَذِّنَ ابْنُ أُمِّ مَكْتُومٍ وَلَمْ يَكُنْ بَيْنَهُمَا إِلَّا أَنْ يَنْزِلَ هَذَا وَيَرْقَى هَذَا 2015 وَبِهَذَا الْإِسْنَادِ عَنْ عُبَيْدِ اللهِ عَنِ الْقَاسِمِ عَنْ عَائِشَةَ عَنِ النَّبِيِّ ﷺ مِثْلَهُ  

[Machine] The Prophet ﷺ had three muezzins: Bilal, Abu Mahdhurah, and Ibn Umm Maktum. Abu Bakr and Al-Khabbaran both stated that this is correct. Whoever says the Prophet ﷺ had two muezzins is referring to those who used to call for prayer in Madinah, while whoever says three is referring to Abu Mahdhurah, who used to call for prayer in Makkah. The scholar stated that the fact that Abu Mahdhurah was the only one calling for prayer in Makkah indicates that it is permissible to have only one muezzin.  

كَانَ لِلنَّبِيِّ ﷺ ثَلَاثَةُ مُؤَذِّنِينَ بِلَالٌ وَأَبُو مَحْذُورَةَ وَابْنُ أُمِّ مَكْتُومٍ قَالَ أَبُو بَكْرٍ وَالْخَبَرَانِ صَحِيحَانِ يَعْنِي هَذَا وَمَا تَقَدَّمَ فَمَنْ قَالَ كَانَ لَهُ مُؤَذِّنَانِ أَرَادَ اللَّذَيْنِ كَانَا يُؤَذِّنَانِ بِالْمَدِينَةِ وَمَنْ قَالَ ثَلَاثَةً أَرَادَ أَبَا مَحْذُورَةَ الَّذِي كَانَ يُؤَذِّنُ بِمَكَّةَ قَالَ الشَّيْخُ وَفِي اقْتِصَارِهِ بِمَكَّةَ عَلَى مُؤَذِّنٍ وَاحِدٍ دَلَالَةٌ عَلَى جَوَازِ الِاقْتِصَارِ عَلَى مُؤَذِّنٍ وَاحِدٍ  

[Machine] "He informed him that the third call to prayer on Fridays was only ordered by Uthman when the people of Medina increased, and the call to prayer on Fridays would be made when the Imam sat on the pulpit."  

أَنَّهُ أَخْبَرَهُ أَنَّ التَّأْذِينَ الثَّالِثَ يَوْمَ الْجُمُعَةِ إِنَّمَا أَمَرَ بِهِ عُثْمَانُ حِينَ كَثُرَ أَهْلُ الْمَدِينَةِ وَكَانَ التَّأْذِينُ يَوْمَ الْجُمُعَةِ حِينَ يَجْلِسُ الْإِمَامُ عَلَى الْمِنْبَرِ