Alexander was called the Two-horned, according to some, because he went through the world from one end to the other; according to others, because he wore two long locks of hair which stood up like horns; according to others, because he had two gold horns on his crown which symbolized the kingdoms of Grecia and Persia over which he reigned. But according to others, he once dreamed that he had got so near to the son, that he caught it by its two ends, and therefore he was given his name. Learned men are also equally disagreed as to the time in which he lived, and as to the place of his birth and residence. Most think that there were two Alexanders. One was descended from Shem, and went with El Khoudr to the end of the world after the Fountain of Immortality, and who was ordered by God to build an indestructible wall against the incursions of the children of Gog and Magog. The other Alexander was the son of Philip of Macedon, and was descended from Japheth, and was the pupil of Aristotle at Athens.[358] And now let us return to the fountain or well of Zemzem, and relate what befel that. Nabajoth, the eldest son of Ishmael, succeeded his father in the custody of the Kaaba, of the tombs of Adam and Eve, of the stone and the well. But having left only very young children to succeed him, Madad-ben-Amron, their maternal grandfather, took charge of their education, and at the same time became the protector of the Kaaba and of the well of Zemzem. The children of Nabajoth, when they grew old, would not contest with their foster-father the possession of the Holy places, therefore it remained to him and his sons till the time when the Giorhamides took them by violence. Then the posterity of Ishmael having attacked them, defeated them, and recovered the city and temple of Mecca. But the stone, and the two gazelles of gold which a king of Arabia had given to the Kaaba, had been lost, for they had been thrown into the well of Zemzem, which had been filled up. The well remained choked and unregarded till the times of Abd-el-Motalleb, grandfather of Mohammed, who one day heard a voice bid him dig the well of Zemzem. Abd-el-Motalleb asked the voice what Zemzem was. Then the voice replied: “It is the well that sprang up to nourish Ishmael in the desert, whereof he and his children drank.” Abd-el-Motalleb, not knowing whereabouts to dig, asked further, and the voice answered, “The well of Zemzem is near two idols of the Koraïschites named Assaf and Nailah; dig on the spot where you shall see a magpie pecking in the ground and turning up a nest of ants.” Abd-el-Motalleb set about obeying the voice, in spite of the opposition of the Koraïschites, who objected to the overthrow of their idols. However, he dug, along with his ten sons, and he vowed that if God would show him the water, he would sacrifice one of his sons. And when he came to water, he found the gazelles of gold and the Black Stone.