Abu Dawud
General Behavior
Book Number: 036 / Hadith Number: 5231
Narated By Al-Abbas ibn AbdulMuttalib : Al-Abbas said to the Apostle of Allah (pbuh): We wish to sweep out Zamzam, but in it there are some of these Jinnan, meaning small snakes; so the Apostle of Allah (pbuh) ordered that they should be killed.