Musnad Ahmad 30:2203

Muhammad ibn Ja'far narrated to us, Hisham narrated to us, from Muhammad, from Abu Hurayrah, who said: "The mouse is among those who were transformed (into animals). The sign of that is that the milk of camels is placed for it, and it does not approach it, but if the milk of sheep is placed for it, it consumes it." Ka'b said to him: "Did you hear this from the Messenger of Allah, may Allah bless him and grant him peace?" He (Abu Hurayrah) replied: "Was the Torah revealed to me?"