To which fictional work does XXX belong in?
Kai Khosrow
The Cup of Jamshid or, in reality, the Cup of Kai Khosrow (Cup of Djemscheed or Jaam-e Jam, or cup of Kai Khosrow in Persian: جام جم) is a cup of divination which, in Persian mythology, was long possessed by the rulers of ancient Persia.
Persian mythology