Sahih Muslim Book 21, Hadith Number 4799.

Chapter : Pertaining to the flesh of the Lizard.

Abu Sa’id reported that a person said: Messenger of Allah, we live in a land abounding in lizards, so what do you command or what verdict you give (about eating of it)? Thereupon he said: It was mentioned to me that a people from among Bani Isra’il were distorted (so there is a likelihood that those people might have been distorted in the shape of lizards). So he neither commanded (us to eat that) nor forbade (us). Abu Sa’id said: After some time Umar said: Allah, the Exalted and Majestic, has made it (a source of) benefit for more than one (person), for it is the common diet of shepherds. Had it been with me, I would have eaten that. Allah’s Messenger (may peace be upon him) disliked it.