Musnad Ahmad 16875 — Hadith of Mu'awiyah ibn Abi Sufyan

He said, Abdullah said: I found this statement at the end of this hadith, in the book of my father in his own handwriting, connected to it, and he had marked over it, so I do not know whether he read it to me or not:
"And indeed, the obedient listener has no argument against him, and indeed, the disobedient listener has no argument for him."