Abu Dawud Book 36, Hadith Number 5236.
Chapter : Not known.
Narated By AbuSa’id al-Khudri : Muhammad ibn AbuYahya said that his father told that he and his companion went to AbuSa’id al-Khudri to pay a sick visit to him. He said: Then we came out from him and met a companion of ours who wanted to go to him. We went ahead and sat in the mosque. He then came back and told us that he heard AbuSa’id al-Khudri say: The Apostle of Allah (PBUH) said: Some snakes are jinn; so when anyone sees one of them in his house, he should give it a warning three times. If it return (after that), he should kill it, for it is a devil.