It is narrated from Sayyiduna Samurah bin Jundub (may Allah be pleased with him) that he said: My mother had become a widow and came to Madinah, and people proposed marriage to her. She said: I will marry only a man who will take care of this orphan (meaning Samurah). So a man from the Ansar married her. He said: the Messenger of Allah (peace and blessings be upon him) used to inspect the young boys of the Ansar every year and would enlist those of them who were found (physically) ready (into the army). He said: One year I was also presented, and he (peace and blessings be upon him) enlisted a boy and turned me away. I said: "O Messenger of Allah, you enlisted him and turned me away, yet if I wrestled him, I would throw him down." He (peace and blessings be upon him) said: "Then wrestle him." So I wrestled him and threw him down, and he (peace and blessings be upon him) enlisted me as well. The chain of this hadith is sahih (authentic), and the two Shaykhs (Bukhari and Muslim) did not record it.