In Muslim tradition, al-Khidr is widely known as the guide of Moses and Alexander the Great, a wali (saint), a prophet, and one of four immortals along with Enoch (Idris), Jesus, and Elijah. Khidr’s story stands at the center of the Qur’an. The Prophet Muhammad expanded on the story, further detailing Moses’ journey with Khidr. In the Persian Alexander Romances (Iskandar Nama), Khidr appears as Alexander’s deputy and cook who gained immortality by drinking the water of eternal life.