Sahih Muslim
The Book of Pilgrimage (Kitab Al-Hajj)
Book Number: 007 / Hadith Number: 2721
A'isha reported Allah's Mdssenger (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.