... In the dark regions (Eẓ-Ẓulumát, from which, perhaps, the above-mentioned portion of the Moḥeeṭ takes its name), in the south-west quarter of the earth, according to the same author, is the Fountain of Life, of which El-Khiḍr drank, and by virtue of which he still lives, and will live till the day of judgment.  This mysterious person, whom the vulgar and some others regard as a prophet, and identify with Ilyás (Elias, or Elijah), and whom some confound with St. George, was, according to the more approved opinion of the learned, a just man, or saint, the Wezeer and counsellor of the first Zu-l-Ḳarneyn, who was a universal conqueror, but an equally doubtful personage, contemporary with the patriarch Ibráheem, or Abraham.  El-Khiḍr is said to appear frequently to Muslims in perplexity, and to be generally clad in green garments; whence, according to some, his name... (The Thousand and One Nights, Lane-Poole, 1865)