In their progress Khosráu said to Fríburz and Tús, "Ferúd, who is my brother, has built a strong fort in Bokhára, called Kulláb, which stands on the way to the enemy, and there he resides with his mother, Gúlshaher. Let him not be molested, for he is also the son of Saiáwush, but pass on one side of his possessions." Fríburz did pass on one side as requested; but Tús, not liking to proceed by the way of the desert, and preferring a cultivated and pleasant country, went directly on through the places which led to the very fort in question. When Ferúd was informed of the approach of Tús with an armed force, he naturally concluded that he was coming to fight him, and consequently determined to oppose his progress. Tús, however, sent Ríú, his son-in-law, to explain to Ferúd that he had no quarrel or business with him, and only wished to pass peaceably through his province; but Ferúd thought this was merely an idle pretext, and proceeding to hostilities, Ríú was killed by him in the conflict that ensued. Tús, upon being informed of this result, drew up his army, and besieged the fort into which Ferúd had precipitately retired. When Ferúd, however, found that Tús himself was in the field, he sallied forth from his fastness, and assailed him with his bow and arrows. One of the darts struck and killed the horse of Tús, and tumbled his rider to the ground. Upon this occurrence Gíw rushed forward in the hopes of capturing the prince; but it so happened that he was unhorsed in the same way. Byzun, the son of Gíw, seeing with great indignation this signal overthrow, wished to be revenged on the victor; and though his father endeavored to restrain him, nothing could control his wrath. He sprung speedily forward to fulfil his menace, but by the bravery and expertness of Ferúd, his horse was killed, and he too was thrown headlong from his saddle. Unsubdued, however, he rose upon his feet, and invited his antagonist to single combat. In consequence of this challenge, they fought a short time with spears till Ferúd deemed it advisable to retire into his fort, from the lofty walls of which he cast down so many stones, that Byzun was desperately wounded, and compelled to leave the place. When he informed Tús of the misfortune which had befallen him, that warrior vowed that on the following day not a man should remain alive in the fort. The mother of Ferúd, who was the daughter of Wísah, had at this period a dream which informed her that the fortress had taken fire, and that the whole of the inhabitants had been consumed to death. This dream she communicated to Ferúd, who said in reply:--