Sahih Muslim Book 7, Hadith Number 2721.

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 reported Allah’s Messenger (may peace be upon him) having said this: Five are the vicious and harmful things which should be killed even within the precincts of Haram: rat, scorpion, crow, kite and voracious dog.