Musnad Abu Ya'la al-Mawsili 160:217

Ibrahim ibn Sa'id narrated to us, Abu Mu'awiyah narrated to us, from Ibrahim ibn al-Fadl, from Sa'id ibn Abi Sa'id, from Abu Hurayrah, who said: The Messenger of Allah (may Allah bless him and grant him peace) passed by a leaning wall, so he quickened his pace. He said: "Indeed, I dislike the death of 'al-fawat' (sudden death)."