Musannaf Ibn Abi Shayba 37:291

Husayn ibn Ali narrated to us, from Za'idah, from Mansur, from Shaqiq, from Hudhayfah, who said: "Evil will soon be poured upon you from the sky until it reaches the *fayafi*." It was said: "And what are the *fayafi*, O Abu Abd Allah?" He said: "The desolate land."