And Umm al-Mu'minin Aisha al-Siddiqa (may Allah be pleased with her) said that the Messenger of Allah (peace and blessings of Allah be upon him) said: "An army will attack the House (the Ka'bah), and it will be swallowed up by the earth."

Narrated Ibn `Abbas: The Prophet said, "As if I were looking at him, a black person with thin legs plucking the stones of the Ka`ba one after another. "