Sudan Series, Episode 6: Khidr (the green man) & Musa (a.s) It is said that the righteous servant, Al-Khidr, and the Prophet Musa, peace be upon him, met not at a mythical confluence of two seas, but here, on the banks of the Nile where the White and the Blue embrace. They met not in a vague elsewhere, but in the heart of Sudan. Here, where the light of wisdom touches the earth, Al-Khidr, the eternal guide, walked with Musa through our ancient groves of sunt trees and along our rust-red plains.