Musnad Ahmad 32:2148

Bahz narrated to us, Shu'bah narrated to us, he said: Qatadah informed us, from Anas, who said: "The Prophet, peace and blessings of Allah be upon him, used to love pumpkin" — or he said: "gourd." He said: So I saw him one day eating it, and I began placing it before him.