The Nāṣirī Generations 170.4.1

170.4.1

In the year 601 H., he marched his forces into the Khwarazm territory; and Sultan Muhammad, Khwarazm Shah, fell back discomfited before the Ghaznin forces and retired to Khwarazm. When the Sultan-i-Ghazi appeared before the gates of Khwarazm, and carried on hostilities for some days, the people of Khwarazm commenced engaging the Ghuris on the bank of the aqueduct which had been drawn from the river Jihun towards the east of the city, and the name of which place and water is Kara-Su [the Black Water], and of the Amirs of Ghur several persons were slain and taken prisoners in that engagement.