Musnad Ahmad 1153:2225

Yunus narrated to us, he said: Hammad—meaning Ibn Zayd—narrated to us, from Hisham ibn Urwah, from his father, from Aisha, she said: The Messenger of Allah, may Allah bless him and grant him peace, said: "Five are vicious (fawasiq) that may be killed in the Sacred Precinct (Haram): the scorpion, the mouse, the kite, the crow, and the biting dog."