Quoth Dunyazad, "O sister mine, an thou be other than sleepy, tell us one of thy fair tales, so therewith we may cut short the waking hours of this our night," and quoth Shahrazad:--It hath reached me, O King of the Age, that Mubarak fell to waiting upon Zayn al-Asnam the son of his old lord, and the Grandees of Cairo there sitting marvelled to see Mubarak, one of the great men of the city, serving the youth and wondered with extreme wonderment, unknowing whence the stranger was. After this they ate and drank and supped well and were cheered till at last Mubarak turned towards them and said, "O folk, admire not that I wait upon this young man with all worship and honour, for that he is the son of my old lord, the Sultan of Bassorah, who bought me with his money and who died without manumitting me. I am, therefore, bound to do service to his son, this my young lord, and all that my hand possesseth of money and munition belongeth to him nor own I aught thereof at all, at all." When the Grandees of Cairo heard these words, they stood up before Zayn al-Asnam and salamed to him with mighty great respect and entreated him with high regard and blessed him. Then said the Prince, "O assembly, I am in the presence of your worships, and be ye my witnesses. O Mubarak, thou art now freed and all thou hast of goods, gold and gear erst belonging to us becometh henceforth thine own and thou art endowed with them for good each and every. Eke do thou ask whatso of importance thou wouldst have from me, for I will on no wise let or stay thee in thy requiring it." With this Mubarak arose and kissed the hand of Zayn al-Asnam and thanked him for his boons, saying, "O my lord, I wish for thee naught save thy weal, but the wealth that is with me is altogether overmuch for my wants." Then the Prince abode with the Freedman four days, during which all the Grandees of Cairo made act of presence day by day to offer their salams as soon as they heard men say, "This is the master of Mubarak and the monarch of Bassorah." And whenas the guest had taken his rest he said to his host, "O Mubarak, my tarrying with thee hath been long; whereto said the other, "Thou wottest, O my lord, that the matter whereinto thou comest to enquire is singular-rare, but that it also involveth risk of death, and I know not if thy valour can make the attainment thereto possible to thee." Rejoined Zayn al-Asnam, "Know, O Mubarak, that opulence is gained only by blood; nor cometh aught upon mankind save by determination and predestination of the Creator (be He glorified and magnified!); so look to thine own stoutness of heart and take thou no thought of me." Thereupon Mubarak forthright bade his slaves get them ready for wayfare; so they obeyed his bidding in all things and mounted horse and travelled by light and dark over the wildest of wolds, every day seeing matters and marvels which bewildered their wits, sights they had never seen in all their years, until they drew near unto a certain place.