Firishta's History (Gulshan-i Ibrāhīmī) 23.2.4

23.2.4

In the year following, Mahomed Ghoory having recruited his forces, marched towards Pishawur, which in a short time was brought under subjection. He proceeded, in the course of the next year, towards Lahore, where he made war with Sooltan Khoosrow Mullik, the last of the Ghiznevides, who being reduced at that time, by wars both with the Indian princes and the Afghans, was unable to oppose him in the field. Mahomed Ghoory, finding he could not take Lahore by force, offered to treat with Khoosrow Mullik, who having gladly availed himself of the circumstance, gave his son Mullik Shah into his hands as an hostage for the performance of part of the treaty. Mahomed Ghoory now returned to Ghizny; but in the next year marched towards Deebul, in the province of Sind, and overran the whole country as far as the sea-coast, returning laden with rich spoil.