The Black Stone of Mecca, according to…

The Black Stone of Mecca, according to historian Al-Juwayni, is returned under mysterious circumstances in 951, twenty-two years after it’s removal by the Qarmatians.

Wrapped in a sack, it is thrown into the Great Mosque of Kufa in Iraq, accompanied by a note saying "By command we took it, and by command we have brought it back."

The theft and removal of the Black Stone had caused it to break into seven pieces.