حبیب السیر 8: Transactions in Ghor.

8

In the year 401 H., Sultan Mahmud of Ghaznin, through a thirst for worldly glory, led his army to Ghor; and the governor of that country, Muhammad bin Suri, having come out to oppose him with 10,000 cavalry, became the victim of the powerful decree of fate, and having sucked the poison which was in his ring, departed this life. That country came into the possession of the agents of the Sultan.