Musnad Abu Ya'la al-Mawsili 110:101

Narrated to us Abd al-A’la ibn Hammad, narrated to us Wuhayb ibn Khalid, narrated to us Layth, from Tawus, from Ibn Abbas, from the Prophet (peace be upon him), who said: "Five [creatures] may be killed by the one in the state of Ihram: the kite, the mouse, the scorpion, the crow, and the biting dog."