Musnad Abu Ya'la al-Mawsili 153:130

And from his father, attributing it to the Prophet, may Allah bless him and grant him peace, he said: "Five of the beasts, there is no blame upon the one who kills them while in the state of Ihram or within the Sacred Precincts: the crow, the mouse, the scorpion, and the biting dog." Sufyan said: "And the lion, the wolf, and the biting hornet."