Abu Dawud Book 36, Hadith Number 5184.
Chapter : Not known.
Narated By Anas ibn Malik : The Apostle of Allah (PBUH) came to us when I was a boy among the boys. He saluted us and took me by my hand. He then sent me with some message. He himself sat in the shadow of a wall, or he said: near a wall until I returned to him.