The Chachnāma (Fatḥnāma-yi Sind) 13.2.3

13.2.3

now we ought to acquaint ourselves with the south.” The wazir said: “Indeed, one of the best habits of kings is that they should constantly enquire about the affairs of their country. It is possible that, owing to your long absence in the upper divisions, the nobles and rulers of those (southern) parts may have a haughty notion in their heads that, after Rai Sahasi, there is no one to exact revenue from them. Truly transgression and disorder have found their way there.” Then, in an auspicious hour, Chach started for the fortified towns of Mudapur (or Budhapur) and Siwistan. In the fort of Siwistan, there was a governor whose name was Mattah. Chach, with a firm resolution, crossed the waters of the Mehran at a village called Wahtét (or Diháyat), which forms the boundary between Sammah and Alor. From there, he proceeded towards Budhiah. The ruler of this latter place, at that time, was Basámi Kotad son of Bandar Kébhkó, and his capital town was Sawis). Chach marched against them and conquered the fort of Siwis. Katah (or Kaba) son of Kékah came forth, and asked protection for his father and his followers. They imposed a tribute upon themselves and they all submitted.