Sayyiduna Amr bin Salamah (may Allah be pleased with him) narrates: Some people of the tribe came to the Messenger of Allah (peace and blessings be upon him) and heard him say: "Let the one of you who knows the most Qur'an lead you in prayer." So they put me in front of them while I was a boy. I used to lead them in prayer in a patched striped cloak which had a tear in it, so whenever I prostrated, my private parts would be exposed. So they said to my father: Will you not cover his private parts for our sake? And I used to encourage them to learn the Qur'an. Zuhayr said: He remained the imam of his people in prayer and at their funerals for the rest of his life.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6324