Musannaf Ibn Abi Shayba 37:283

Abu Mu'awiyah narrated to us, from al-A'mash, from Zayd, from Hudhayfah, who said: "There does not remain of the hypocrites except four; one of them is a very old man who does not feel the coldness of water due to old age." He said: A man said to him, "Then who are these people who break into our houses and steal our belongings?" He said: "Woe to you, those are the corrupt ones (al-fussaq)."