Musnad Ahmad 288:9

Muhammad ibn Abdullah al-Ansari narrated to us, he said: Abu Yunus Hatim ibn Abi Saghirah narrated to us, he said: al-Nu’man ibn Salim narrated to me, that ‘Amr ibn Aws informed him, from his father Aws, he said: We were sitting with the Messenger of Allah, may Allah bless him and grant him peace, while he was speaking to us and advising us, when a man came to him. Then he mentioned the like of it.