When the Muslims came to Medina, they gathered and sought to know the time of prayer but no one summoned them. One day they discussed the matter, and some of them said: Use something like the bell of the Christians and some of them said: Use horn like that of the Jews. Umar said: Why may not a be appointed who should call (people) to prayer? The Messenger of Allah ﷺ said: O Bilal, get up and summon (the people) to prayer. (Using translation from Muslim 377)   

أَنَّهُ يَقُولُ كَانَ الْمُسْلِمُونَ حِينَ قَدِمُوا الْمَدِينَةَ يَجْتَمِعُونَ فَيَتَحَيَّنُونَ الصَّلَوَاتِ وَلَيْسَ يُنَادِي بِهَا أَحَدٌ فَتَكَلَّمُوا يَوْمًا فِي ذَلِكَ فَقَالَ بَعْضُهُمْ نَتَّخِذُ نَاقُوسًا مِثْلَ نَاقُوسِ النَّصَارَى وَقَالَ بَعْضُهُمْ بَلْ قَرْنًا مِثْلَ قَرْنِ الْيَهُودِ فَقَالَ عُمَرُ ؓ أَفَلَا تَبْعَثُونَ رَجُلًا يُنَادِي بِالصَّلَاةِ فَقَالَ رَسُولُ اللهِ ﷺ قُمْ يَا بِلَالُ فَنَادِ بِالصَّلَاةِ  

[Machine] "About Ishaq ibn Ibrahim..."  

عَنْ إِسْحَاقَ بْنِ إِبْرَاهِيمَ  

[Machine] When prayer time arrived during the era of the Prophet Muhammad ﷺ, a man hurried on the road and called out, "Prayer, prayer!" This caused a commotion among the people, so they said, "If only we had a bell, O Messenger of Allah!" He replied, "That is for Christians." They then said, "If only we had a horn." He replied, "That is for Jews." So Bilal was commanded to give the call to prayer and give the call for the start of prayer.  

كَانَتِ الصَّلَاةُ إِذَا حَضَرَتْ عَلَى عَهْدِ رَسُولِ اللهِ ﷺ سَعَى رَجُلٌ فِي الطَّرِيقِ فَنَادَى الصَّلَاةَ الصَّلَاةَ فَاشْتَدَّ ذَلِكَ عَلَى النَّاسِ فَقَالُوا لَوِ اتَّخَذْنَا نَاقُوسًا يَا رَسُولَ اللهِ فَقَالَ ذَلِكَ لِلنَّصَارَى فَقَالُوا لَوِ اتَّخَذْنَا بُوقًا قَالَ ذَلِكَ لِلْيَهُودِ قَالَ فَأُمِرَ بِلَالٌ أَنْ يَشْفَعَ الْأَذَانَ وَيُوتِرَ الْإِقَامَةَ  

AbuUmayr reported on the authority of his uncle who was from the Ansar (the helpers of the Prophet): The Prophet ﷺ was anxious as to how to gather the people for prayer. The people told him: Hoist a flag at the time of prayer; when they see it, they will inform one another. But he (the Prophet) did not like it. Then someone mentioned to him the horn. Ziyad said: A horn of the Jews. He (the Prophet) did not like it. He said: This is the matter of the Jews. Then they mentioned to him the bell of the Christians. He said: This is the matter of the Christians. Abdullah ibn Zayd returned anxiously from there because of the anxiety of the Apostle ﷺ. He was then taught the call to prayer in his dream. Next day he came to the Messenger of Allah ﷺ and informed him about it. He said: Messenger of Allah, I was between sleep and wakefulness; all of a sudden a newcomer came (to me) and taught me the call to prayer. Umar ibn al-Khattab had also seen it in his dream before, but he kept it hidden for twenty days. The Prophet ﷺ said to me (Umar): What did prevent you from saying it to me? He said: Abdullah ibn Zayd had already told you about it before me: hence I was ashamed. Then the Messenger of Allah ﷺ said: Bilal, stand up, see what Abdullah ibn Zayd tells you (to do), then do it. Bilal then called them to prayer. AbuBishr reported on the authority of AbuUmayr: The Ansar thought that if Abdullah ibn Zayd had not been ill on that day, the Messenger of Allah ﷺ would have made him mu'adhdhin. (Using translation from Abū Dāʾūd 498)   

اهْتَمَّ النَّبِيُّ ﷺ لِلصَّلَاةِ كَيْفَ يَجْمَعُ النَّاسَ لَهَا فَقِيلَ لَهُ انْصِبْ رَايَةً عِنْدَ حُضُورِ الصَّلَاةِ فَإِذَا رَأَوْهَا آذَنَ بَعْضُهُمْ بَعْضًا فَلَمْ يُعْجِبْهُ ذَلِكَ قَالَ فَذُكِرَ لَهُ الْقُنْعُ يَعْنِي الشَّبُّورَ وَقَالَ زِيَادٌ شَبُّورُ الْيَهُودِ فَلَمْ يُعْجِبْهُ ذَلِكَ وَقَالَ هُوَ مِنْ أَمْرِ الْيَهُودِ قَالَ فَذُكِرَ لَهُ النَّاقُوسُ فَقَالَ هُوَ مِنْ أَمْرِ النَّصَارَى فَانْصَرَفَ عَبْدُ اللهِ بْنُ زَيْدٍ وَهُو مُهْتَمٌّ لِهَمِّ رَسُولِ اللهِ ﷺ فَأُرِيَ الْأَذَانَ فِي مَنَامِهِ قَالَ فَغَدَا عَلَى رَسُولِ اللهِ ﷺ فَأَخْبَرَهُ فَقَالَ يَا رَسُولَ اللهِ إِنِّي لَبَيْنَ نَائِمٍ وَيَقْظَانَ إِذْ أَتَانِي آتٍ فَأَرَانِي الْأَذَانَ قَالَ وَكَانَ عُمَرُ بْنُ الْخَطَّابٍ قَدْ رَآهُ قَبْلَ ذَلِكَ فَكَتَمَهُ عِشْرِينَ يَوْمًا قَالَ ثُمَّ أَخْبَرَ رَسُولَ اللهِ ﷺ فَقَالَ لَهُ مَا مَنَعَكَ أَنْ تُخْبِرَنَا؟ فَقَالَ سَبَقَنِي عَبْدُ اللهِ بْنُ زَيْدٍ فَاسْتَحْيَيْتُ فَقَالَ رَسُولُ اللهِ ﷺ يَا بِلَالُ قُمْ فَانْظُرْ مَا يَأْمُرُكَ بِهِ عَبْدُ اللهِ بْنُ زَيْدٍ فَافْعَلْهُ قَالَ فَأَذَّنَ بِلَالٌ قَالَ أَبُو بِشْرٍ أَخْبَرَنِي أَبُو عُمَيْرٍ أَنَّ الْأَنْصَارَ تَزْعُمُ أَنَّ عَبْدَ اللهِ بْنَ زَيْدٍ لَوْلَا أَنَّهُ كَانَ يَوْمَئِذٍ مَرِيضًا لَجَعَلَهُ رَسُولُ اللهِ ﷺ مُؤَذِّنًا  

[Machine] When the Messenger of Allah ﷺ commanded that the bell be made to be struck to call the people to gather for prayer, he passed by me while I was sleeping. There was a man carrying a bell in his hand, so I said to him, "O Abdullah, are you selling the bell?" He said, "What do you do with it?" I said, "We call the people to prayer with it." He said, "Shall I not tell you something better than that?" I said, "Yes." He said, "Say Allahu Akbar, Allahu Akbar, Allahu Akbar, Allahu Akbar, Ashhadu Alla ilaha illa Allah, Ashhadu Alla ilaha illa Allah, Ashhadu anna Muhammadan Rasul Allah, Ashhadu anna Muhammadan Rasul Allah, Hayya 'ala as-Salah, Hayya 'ala as-Salah, Hayya 'ala al-Falah, Hayya 'ala al-Falah, Allahu Akbar, Allahu Akbar, La ilaha illa Allah." Then he went a short distance and said, "When you stand up to pray, you should say: Allahu Akbar, Allahu Akbar, Ashhadu Alla ilaha illa Allah, Ashhadu anna Muhammadan Rasul Allah, Hayya 'ala as-Salah, Hayya 'ala al-Falah. The prayer has begun, the prayer has begun. Allahu Akbar, Allahu Akbar, La ilaha illa Allah." When I went to the Messenger of Allah ﷺ in the morning, I told him what I had seen. He said, "It was a true vision, if Allah wills. Go with Bilal, and give him what you saw, and let him make the adhan, for he has a more melodious voice than you." So I went with Bilal, and I told him what I had seen, and he made the call to prayer with it. 'Umar ibn al-Khattab heard it when he was in his house, and he came out dragging his garment and saying, "By the One Who sent you with the truth, O Messenger of Allah, I have seen what he saw." The Messenger of Allah ﷺ said, "Allah be praised, and Abu Abdullah al-Hafiz narrated to us, Ahmad ibn Ja'far al-Qatti'i, told us, ' Abdullah ibn Ahmad ibn Hanbal told me, my father, Ya'qub narrated it to me, and he mentioned it in a similar manner, except that he mentioned saying the takbeer twice in the adhan, and Muhammad ibn Salamah also narrated it from Ibn Ishaq. And Abu 'Ali al-Rudhbari narrated to us, Abu Bakr ibn Dasa narrated to us, he said, Abu Dawud said, "And this is how it was."  

لَمَّا أَمَرَ رَسُولُ اللهِ ﷺ بِالنَّاقُوسِ يُعْمَلُ لِيُضْرَبَ بِهِ لِلنَّاسِ فِي الْجَمْعِ لِلصَّلَاةِ أَطَافَ بِي وَأَنَا نَائِمٌ رَجُلٌ يَحْمِلُ نَاقُوسًا فِي يَدِهِ فَقُلْتُ لَهُ يَا عَبْدَ اللهِ أَتَبِيعُ النَّاقُوسَ؟ قَالَ وَمَا تَصْنَعُ بِهِ؟ فَقُلْتُ نَدْعُو بِهِ إِلَى الصَّلَاةِ قَالَ أَفَلَا أَدُلُّكَ عَلَى مَا هُوَ خَيْرٌ مِنْ ذَلِكَ؟ قُلْتُ بَلَى قَالَ تَقُولُ اللهُ أَكْبَرُ اللهُ أَكْبَرُ اللهُ أَكْبَرُ اللهُ أَكْبَرُ أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ أَشْهَدُ أَنَّ مُحَمَّدًا رَسُولُ اللهِ أَشْهَدُ أَنَّ مُحَمَّدًا رَسُولُ اللهِ حِيِّ عَلَى الصَّلَاةِ حِيَّ عَلَى الصَّلَاةِ حِيِّ عَلَى الْفَلَاحِ حِيِّ عَلَى الْفَلَاحِ اللهُ أَكْبَرُ اللهُ أَكْبَرُ لَا إِلَهَ إِلَّا اللهُ ثُمَّ اسْتَأْخَرَ غَيْرَ بَعِيدٍ قَالَ ثُمَّ تَقُولُ إِذَا أَقَمْتَ الصَّلَاةَ اللهُ أَكْبَرُ اللهُ أَكْبَرُ أَشْهَدُ أَنْ لَا إِلَهَ إِلَّا اللهُ أَشْهَدُ أَنَّ مُحَمَّدًا رَسُولُ اللهِ حِيَّ عَلَى الصَّلَاةِ حِيَّ عَلَى الْفَلَاحِ قَدْ قَامَتِ الصَّلَاةُ قَدْ قَامَتِ الصَّلَاةُ اللهُ أَكْبَرُ اللهُ أَكْبَرُ لَا إِلَهَ إِلَّا اللهُ فَلَمَّا أَصْبَحْتُ أَتَيْتُ رَسُولَ اللهِ ﷺ فَأَخْبَرْتُهُ مَا رَأَيْتُ فَقَالَ إِنَّهَا لَرُؤْيَا حَقٍّ إِنْ شَاءَ اللهُ تَعَالَى فَقُمْ مَعَ بِلَالٍ فَأَلْقِ عَلَيْهِ مَا رَأَيْتَ فَلْيُؤَذِّنْ بِهِ فَإِنَّهُ أَنْدَى صَوْتًا مِنْكَ فَقُمْتُ مَعَ بِلَالٍ فَجَعَلْتُ أُلْقِيهِ عَلَيْهِ وَيُؤَذِّنُ بِهِ فَسَمِعَ بِذَلِكَ عُمَرُ بْنُ الْخَطَّابِ وَهُوَ فِي بَيْتِهِ فَخَرَجَ يَجُرُّ رِدَاءَهُ وَيَقُولُ وَالَّذِي بَعَثَكَ بِالْحَقِّ يَا رَسُولَ اللهِ لَقَدْ رَأَيْتُ مِثْلَ مَا رَأَى فَقَالَ رَسُولُ اللهِ ﷺ فَلِلَّهِ الْحَمْدُ 1836 وَأَخْبَرَنَا أَبُو عَبْدِ اللهِ الْحَافِظُ أنا أَحْمَدُ بْنُ جَعْفَرٍ الْقَطِيعِيُّ ثنا عَبْدُ اللهِ بْنُ أَحْمَدَ بْنِ حَنْبَلٍ حَدَّثَنِي أَبِي ثنا يَعْقُوبُ فَذَكَرَهُ بِإِسْنَادِهِ مِثْلَهُ إِلَّا أَنَّهُ ذَكَرَ التَّكْبِيرَ فِي صَدْرِ الْأَذَانِ مَرَّتَيْنِ وَكَذَلِكَ ذَكَرَ مُحَمَّدُ بْنُ سَلَمَةَ عَنِ ابْنِ إِسْحَاقَ 1837 وَأَخْبَرَنَا أَبُو عَلِيٍّ الرُّوذْبَارِيُّ ثنا أَبُو بَكْرِ بْنُ دَاسَةَ قَالَ قَالَ أَبُو دَاوُدَ وَهَكَذَا