Musnad Ahmad 1156:140

Waki’ narrated to us, Sufyan narrated to us, Abu ‘Awn Muhammad ibn ‘Ubaydullah al-Thaqafi narrated to us, from ‘Abdullah ibn Shaddad, who said: I heard Abu Hurayrah narrating to Marwan, he said: "Perform ablution from what fire has touched." Marwan then sent to Umm Salamah and asked her, and she said: "The Prophet, peace and blessings of Allah be upon him, ate a shoulder [of meat] in my presence, then went out to prayer and did not touch water." [‘Abdullah] said: And my father said: "Sufyan did not hear from Abu ‘Awn except this hadith."