Musnad Abu Ya'la al-Mawsili 134:11

Al-Hasan ibn Hammad narrated to us, Abu Yahya al-Himmani narrated to us, from al-A'mash, from a man, from Anas, who said: The Prophet, may Allah bless him and grant him peace, entered upon a man to visit him, and he said: "Do you desire anything? Do you desire a cake?" He said: "Yes." So they sought it for him.