"We came to the Messenger of Allah ﷺ and we were young men close in age. He let us stay with him for twenty days. The Messenger of Allah ﷺ was merciful and compassionate, and he thought that we were missing our families; he asked us about those whom we had left behind of our families, so we told him, and he said: 'Go back to your families, stay with them and teach them. Tell them when the time for prayer comes; let one of you call the Adhan and let the oldest of you lead the prayer.'"  

أَتَيْنَا رَسُولَ اللَّهِ ﷺ وَنَحْنُ شَبَبَةٌ مُتَقَارِبُونَ فَأَقَمْنَا عِنْدَهُ عِشْرِينَ لَيْلَةً وَكَانَ رَسُولُ اللَّهِ ﷺ رَحِيمًا رَفِيقًا فَظَنَّ أَنَّا قَدِ اشْتَقْنَا إِلَى أَهْلِنَا فَسَأَلَنَا عَمَّنْ تَرَكْنَاهُ مِنْ أَهْلِنَا فَأَخْبَرْنَاهُ فَقَالَ ارْجِعُوا إِلَى أَهْليِكُمْ فَأَقِيمُوا عِنْدَهُمْ وَعَلِّمُوهُمْ وَمُرُوهُمْ إِذَا حَضَرَتِ الصَّلاَةُ فَلْيُؤَذِّنْ لَكُمْ أَحَدُكُمْ وَلْيَؤُمَّكُمْ أَكْبَرُكُمْ  

"Abu Qilabah said to me (Ayyub): He ('Amr) is still alive, do you want to meet him?" I met him and asked him, and he said: "When Makkah was conquered, all the people hastened to announce their Islam. My father went to announce the Islam of the poeple of our village, and when he came back we went to see him and he said: 'By Allah, I have indeed come to you from the Messenger of Allah ﷺ'. He said: 'Pray such and such a prayer at such and such a time, pray such and such a prayer at such and such a time. When the time for prayer comes let one of you call the Adhan and let the one who knows the most Qur'an lead the prayer.'"  

لِي أَبُو قِلاَبَةَ هُوَ حَىٌّ أَفَلاَ تَلْقَاهُ قَالَ أَيُّوبُ فَلَقِيتُهُ فَسَأَلْتُهُ فَقَالَ لَمَّا كَانَ وَقْعَةُ الْفَتْحِ بَادَرَ كُلُّ قَوْمٍ بِإِسْلاَمِهِمْ فَذَهَبَ أَبِي بِإِسْلاَمِ أَهْلِ حِوَائِنَا فَلَمَّا قَدِمَ اسْتَقْبَلْنَاهُ فَقَالَ جِئْتُكُمْ وَاللَّهِ مِنْ عِنْدِ رَسُولِ اللَّهِ ﷺ حَقًّا فَقَالَ صَلُّوا صَلاَةَ كَذَا فِي حِينِ كَذَا وَصَلاَةَ كَذَا فِي حِينِ كَذَا فَإِذَا حَضَرَتِ الصَّلاَةُ فَلْيُؤَذِّنْ لَكُمْ أَحَدُكُمْ وَلْيَؤُمَّكُمْ أَكْثَرُكُمْ قُرْآنًا