Quoth Iskandar, "Why do ye eat grasses?"; and the other replied, "Because we abhor to make our bellies the tombs of animals and because the pleasure of eating outstrippeth not the gullet." Then putting forth his hand he brought out a skull of a son of Adam and, laying it before Iskandar, said, "O Zu al-Karnayn, Lord of the Two Horns, knowest thou who owned this skull?"
"How knowest thou that?" said Musa, and the other, "I know it for that my father told me of my grandfather that he said, 'We were once journeying in this land and, straying from the road, we came to this palace and thence to the City of Brass; between which and the place thou seekest is two full months' travel; but thou must take to the sea-shore and leave it not, for there be watering-places and wells and camping-grounds established by King Zu al-Karnayn Iskandar who, when he went to the conquest of Mauritania, found by the way thirsty deserts and wastes and wilds and dug therein water-pits and built cisterns. " Quoth Musa, "Allah rejoice thee with good news!" and quoth the Shaykh, "Come, let us go look upon yonder palace and its marvels, for it is an admonition to whose will be admonished."