(9) باب فِي الْخُلَفَاءِ
Makhul said:
The Romans will enter Syria and stay there for forty days, and no place will be saved from them but Damascus and 'Uman. (ID)
Reference (ID): Sunan Abi Dawud 4638 (ID)
In-book reference (ID): Book 42, Hadith 43 (ID)
English translation (ID): Book 41, Hadith 4621 (ID)