Musnad Ahmad 32:687

Abu Kamil narrated to us, Hammad bin Zayd narrated to us, Salam al-Alawi narrated to us, from Anas bin Malik, who said: "A bowl containing pumpkin was brought to the Prophet, peace and blessings of Allah be upon him." He said: "And he used to like pumpkin." He said: "So he began to seek out the pumpkin with his finger—or he said: with his fingers."