Musnad Ahmad 30:995

Zayd ibn al-Hubab narrated to us, Ibn Abi Dhi’b narrated to us, Sa’id ibn Sam’an narrated to me, I heard Abu Hurayrah narrating to Abu Qatadah, he said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Allegiance will be pledged to a man between the Corner (al-Rukn) and the Station (al-Maqam). The House (the Ka'bah) will not be violated except by its own people. If they violate it, then do not ask about the destruction of the Arabs. Then the Abyssinians (al-Habashah) will come and destroy it with a destruction after which it will never be rebuilt again. They are the ones who will extract its treasure."