He thereafter besieged the capital Zrang, and after a heavy battle outside the city, its governor Aparviz surrendered.
When Aparviz went to Rabi ibn Ziyad to discuss about the conditions of a treaty, he saw that he was using the bodies of two dead soldiers as a chair.
This horrified Aparviz, who in order to spare the inhabitants of Sakastan from the Arabs, made peace with them in return for a heavy tribute of one million dirhams, as well as 1,000 slave boys (or girls) bearing 1,000 golden vessels.
[2] 18 months later, Rabi was summoned to Basra, and was replaced by Abd al-Rahman ibn Samura as governor.
[2] In 671, Rabi was appointed as the governor of Khurasan, where he was able to expand Muslim rule in the east as far as Balkh.