It was narrated that Malik bin Al-Huwairith said: "We came to the Messenger of Allah (S.A.W) and we were young men close in age. He let us stay with him for twenty days. The Messenger of Allah (S.A.W) 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.'"

It was narrated from Ayyub, from Abu Qilabah, from 'Amr bin Salamah: "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 (S.A.W)'. 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.'"