Khiḍr is identified with the servant of God whom Moses meets in the eighteenth sura, whose strange actions conceal a higher wisdom. In Sufi tradition he is immortal and appears to seekers who have no earthly master, initiating them directly.
Khiḍr
The Green One: the mysterious servant of God in the Qurʾān who guides Moses, and the hidden teacher of the Sufis.
Also: Khidr, al-Khidr