Musnad Abu Ya'la al-Mawsili 149:105

Abu Bakr ibn Abi Shaybah narrated to us, Ubayd ibn Sa'id al-Qurashi narrated to us, from Sufyan, from Mansur, from Ibrahim, from al-Aswad, from Aisha, who said: A dabb (lizard) was gifted to the Messenger of Allah, may Allah bless him and grant him peace, but he did not eat from it. I said, "O Messenger of Allah, shall I feed it to the beggars?" He said, "Do not feed the beggars anything except what I eat from."