E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Karoon or Korah.
The riches of Karoon (Arabic proverb). Korah, according to the commentators of the Koran, was the most wealthy and most beautiful of all the Israelites. It is said that he built a large palace, which he overlaid with gold, and that the doors of his palace were solid gold (Sale: Koran). He was the Crsus of the Mahometans, and guarded his wealth in a labyrinth.