Musnad Ahmad Hadith 11013

It is narrated from Abu Saeed (may Allah be pleased with him) that a man submitted in the court of the Prophet, "O Messenger of Allah! There is an abundance of lizards in our area, what do you command us regarding this?" The Prophet (peace be upon him) said, "It has been mentioned before me that a group among the Children of Israel was transformed (into another form), (perhaps it is the same)." And the Prophet (peace be upon him) neither commanded to eat it nor forbade it. Abu Saeed (may Allah be pleased with him) says that after this, Umar (may Allah be pleased with him) used to say, "Allah benefits many people through it and it is generally the food of shepherds. If it were with me, I would also eat it. The Prophet (peace be upon him) only refrained from eating it out of caution."