Musnad Ahmad 28:602

'Abdullah ibn Yazid narrated to us, Sa'id ibn Abi Ayyub narrated to us, Shurahbil ibn Sharik al-Mu'afiri narrated to me, from 'Abdur-Rahman ibn Rafi' at-Tanukhi, who said: I heard 'Abdullah ibn 'Amr ibn al-'As saying: I heard the Messenger of Allah (peace and blessings of Allah be upon him) saying: "I do not care what I have committed or what I have ridden, if I have drunk an antidote (tiryāq), or hung an amulet (tamīmah), or composed poetry from my own self."