Musnad Ahmad 1259:3

Mu'adh—meaning Ibn Hisham—narrated to us, he said: My father narrated to me, from Qatadah, from Ishaq ibn Abdullah ibn al-Harith ibn Nawfal, from Umm Hakim bint al-Zubayr: "That she handed the Prophet of Allah, may Allah bless him and grant him peace, a shoulder of meat, and he ate from it, then he prayed."