Musnad Ahmad 1153:2313

Ya'qub narrated to us, Abu Uways narrated to us, from al-Zuhri, who said: 'Urwah ibn al-Zubayr informed me, from 'Aishah, that she informed him that the Messenger of Allah (peace and blessings of Allah be upon him) said: "The gecko is a little pest (fuwaysiq)." She said: And I did not hear him command its killing.