These Copheral Turks invaded Persia about fifteen years ago, about 1145, with a great army, and destroyed the metropolitan city of Rei[18], and carried off vast spoil into the desert. Enraged at this insult, the king of Persia endeavoured to pursue them with a powerful army, that he might extirpate these destroyers from the earth, and procured a guide who undertook to conduct him to their dwellings, and recommended to him to take bread and water for fifteen days along with the army, as it would occupy that time to pass the deserts. After marching these fifteen days, the army was without subsistence for man and beast, and no signs could be perceived of any habitation of mankind. On being interrogated, the guide pretended to have lost his way, and was put to death as a traitor. After marching for thirteen days more, in prodigious distress, during which they had to eat up all the beasts that carried their baggage, they arrived at the mountains of Nisbor, inhabited by the Jews, and incamped among gardens and orchards, watered by canals drawn from the river Gozan; and being then the season of ripe fruits, they eat what they pleased, no one appearing to oppose them. At a distance among the mountains, they observed some hamlets and forts, and two scouts were sent to discover what manner of people inhabited the mountains. After proceeding a short way, they found a well built bridge, with a strong barrier, and a very large city at the farther end of the bridge. They here learned, by an interpreter, that the city belonged to an independent nation of Jews, who had a prince of their own, and were in alliance with the Copheral Turks.
The scouts returned to the camp with this intelligence, and the Jews, having collected their forces, offered battle on the day following to the Persians, The king declined this, declaring that his only object was against the Copheral Turks, and that if the Jews attacked him he would revenge himself by putting all their brethren in Persia to the sword; but he demanded free passage for his army, and to be supplied with provisions for ready money. Out of regard for their brethren in Persia, the Jews agreed to this proposal, and the Persian army remained fifteen days in the country of the Jews, where they were honourably entertained. In the mean time the Jews sent intelligence of the situation of the Persians to their confederates, and the Turks, gathering their forces, assailed the Persians at certain passes in the mountains, and gave them a terrible overthrow; so that the king escaped with great difficulty into Persia, with a small remnant of his host. On this occasion, one of the Persian horsemen seduced a Jew, named Moses, to accompany him into Persia, and then made him a slave. On a public exhibition of archery in the king's presence, this man appeared to be the most expert archer in all Persia, and being called before the king, declared how he had been trepanned and made a slave. The king restored him to liberty; clothed him in purple and silken garments, and enriched him with liberal gifts; offering him great riches, and the government of the royal household, if he would embrace the religion of the country; and when he courteously declined this, he was placed by the king with Rabbi Shallum, the prince of the synagogue at Ispahan, whose daughter he afterwards married; and this Moses related to me the whole story I have here related.