Firishta's History (Gulshan-i Ibrāhīmī) 6.2.7

6.2.7

Mahmood, having by long marches reached Ghizny, pushed onward with his army towards Bulkh, from whence Jakurtugeen although in full possession of the city, fled towards Toormooz. Mahmood detached Arslan Jazib with a great part of his army to expel Sipustugeen from Khorassan; who, upon the approach of the troops of Ghizny, abandoned Hirat, and retreated to Mawur-ool-Nehr. Elik Khan, seeing the state of his affairs, solicited the aid of Kuddur Khan of Khootun, who marched to join him with fifty thousand men. Strengthened by this alliance, Elik Khan crossed the river Jyhoon (Oxus), and encamped within four fursungs of Bulkh. Mahmood was not backward to meet him. The command of the van of the army was given to his brother, the Prince Nuseer-ood-deen Yoosoof, governor of Joozjan, under whom fought Aboo-Nusr Koorzoon and Abdoolla Taee. The right wing was entrusted to Altoon Tash Hajib, while the left, composed of Afghans and Khiljies, was commanded by Arslan Jazib. The main body was strengthened by five hundred elephants, placed in the intervals of the line, so that nothing might oppose the retreat of these animals in case of defeat. The King of Kashghar posted himself in the centre. The Ameer Kuddur Khan led the right, and Sipustugeen the left wing. As both armies advanced to the charge, the shouts of warriors, the neighing of horses, and the clashing of arms, reached the broad arch of heaven, while dust obscured the face of day.