Musnad Ahmad 30:1389

'Affan narrated to us, Hammad narrated to us, Suhayl ibn Abi Salih informed us, he said: I was sitting with my father, and there was a young boy with him. The boy stood up, so I sat in the boy's seat. My father said to me: "Get up from his seat, for Abu Hurayrah informed us that the Messenger of Allah (peace and blessings of Allah be upon him) said: 'If one of you stands up from his seat and then returns to it, he is more entitled to it.'" Except that Suhayl said: "When he made me get up, I felt belittled."