Long ago, in the times of Caliph Haroun-al-Raschid, there lived in Baghdad a poor porter named Hindbad. One hot summer day he carried a heavy load on his head. Due to his weariness, Hindbad decided to rest on the pavement in front of a grand house. I wonder to whom this gorgeous house belongs! Can you tell me the name of the master of this house? he asked a servant who was coming out of the house.