The grandson of Chosroes was nearly surprised among the falling columns and mutilated figures; a sad emblem of the past and present fortune of Persia: he fled with accelerated haste over the desert of Kirman, implored the aid of the warlike Segestans, and sought an humble refuge on the verge of the Turkish and Chinese power.

But a victorious army is insensible of fatigue: the Arabs divided their forces in the pursuit of a timorous enemy; and the caliph Othman promised the government of Chorasan to the first general who should enter that large and populous country, the kingdom of the ancient Bactrians.

The condition was accepted; the prize was deserved; the standard of Mahomet was planted on the walls of Herat, Merou, and Balch; and the successful leader neither halted nor reposed till his foaming cavalry had tasted the waters of the Oxus.

In the public anarchy, the independent governors of the cities and castles obtained their separate capitulations: the terms were granted or imposed by the esteem, the prudence, or the compassion, of the victors; and a simple profession of faith established the distinction between a brother and a slave.

After a noble defence, Harmozan, the prince or satrap of Ahwaz and Susa, was compelled to surrender his person and his state to the discretion of the caliph; and their interview exhibits a portrait of the Arabian manners.