Sahih Muslim Book 7, Hadith Number 2719.

Chapter : Which animal the Muhrim and the non-Muhrim are permitted to kill in the state of Ihram at the conclusion of it (within the precincts of the Ka’ba).

‘Aisha (Allah be pleased with her) reported Allah’s Messenger (may peace be upon him) as saying: Five are the vicious beasts which should be killed even in the state of Ihram: scorpion, rat, kite, crow and voracious dog.