Musnad Abu Ya'la al-Mawsili 42:219

Zuhayr narrated to us, Yahya bin Sa'id narrated to us, from Ibn 'Ajlan, Sayfi narrated to me, from al-Sa'ib, from Abu Sa'id al-Khudri, he said: I heard him say: The Messenger of Allah (ﷺ) said: "Indeed, there are a group of the jinn in Medina who have accepted Islam. So whoever sees any of these house-dwelling snakes, let him give them warning three times. Then if it appears to him after that, let him kill it, for it is a devil."