When the Sultan of Samarcand had reached a great age, he called the three princes, his sons, and after observing that he was much pleased to see how much they loved and revered him, he gave them leave to ask for whatever they most desired. They had only to speak, and he was ready to grant them whatever they asked, let it be what it might, on the sole condition that he should satisfy the eldest first, and the two younger ones afterwards, each in his turn. The eldest prince, whose name was Rostam, begged the Sultan to build him a cabinet of bricks of gold and silver alternately, and roofed with all kinds of precious stones. The Sultan issued his orders that very day, but before the roof of the cabinet was finished, indeed before any furniture had been put into it, Prince Rostam asked his father's leave to sleep there. The Sultan tried to dissuade him, saying that [the roof] ought to be finished first, but the prince was so impatient that he ordered his bed to be removed there, and he lay down. He was reading the Koran about midnight, when suddenly the floor opened and he beheld a most hideous genius named Morhagian rise from the ground, who cried out, "You are a prince, but even if you were the Sultan himself, I would not refrain from taking vengeance for your rashness in entering this house which has been built just above the palace of my eldest daughter." At the same time he paced around the cabinet, and struck its walls, when the whole cabinet was reduced to dust so fine that the wind carried it away, and left not a trace of it. The prince drew his sword, and pursued the genius, who took to flight until he came to a well, into which he plunged [and vanished]. When the prince appeared before his father the Sultan next morning, he was overwhelmed with confusion [not only at what had happened, but on account of his disobedience to his father, who reproached him severely for having disregarded his advice]. The second prince, whose name was Gaiath Eddin (Ghayáth al-Din), then requested the Sultan to build him a cabinet constructed entirely of the bones of fishes. The Sultan ordered it to be built, at great expense. Prince Gaiath Eddin had no more patience to wait till it was quite finished than his brother Rostam. He lay down in the cabinet notwithstanding the Sultan's warnings, but took care to keep his sword by his side The genius Morhagian appeared to him also at midnight, paid him the same compliment, and told him that the cabinet was built over the palace of his second daughter. He reduced it to dust, and Prince Gaiath Eddin pursued him, sword in hand, to the well, where he escaped; and next day the prince appeared before his father, the Sultan [as crestfallen as his brother].