The Prophet of Allah, sallallaahu ‘alayhi wa sallam, ordered them to teach what they learned to their people

Maalik ibn Al-Huwayrith narrated sallallaahu ‘alayhi wa sallam, and we were all youth of a similar age. We stayed about twenty days, and the Prophet of Allah, sallallaahu ‘alayhi wa sallam, was merciful and kind. He realized that we were missing our families, so when he saw that he asked us about our families and we informed him about them. He, sallallaahu ‘alayhi wa sallam, said: ‘It would be good if you returned to your land to teach them, and order them to pray this prayer on such and such time, and that prayer at such and such time. Then when the time for prayer comes, one of you should make the call for prayer, and the oldest of you should lead the prayer .