Firishta's History (Gulshan-i Ibrāhīmī) 40.2.2

40.2.2

Accordingly, in the year 738, he ordered 100,000 horse, under the command of his sister's son, Khoosrow Mullik, to subdue this mountainous region, and to establish garrisons as far as the frontiers of China. When this should be effected, he proposed to advance in person with his whole army to invade that empire. The nobles and counsellors of state in vain assured him, that the troops of India never yet could, and never would advance a step within the limits of China, and that the whole scheme was visionary. The King insisted on making the experiment, and the army was accordingly put in motion. Having entered the mountains, small forts were built on the road, to secure a communication; and proceeding in this manner, the troops reached the Chinese boundary, where a numerous army appeared to oppose them. The numbers of the Indians were by this time greatly diminished, and being much inferior to the enemy, they were struck with dismay; which was only increased, when they considered their distance from home, the rugged country they had passed, the approach of the rainy season, and the scarcity of provisions, which now began to be severely felt. With these feelings, they commenced their retreat towards the foot of the range of hills, where the mountaineers, rushing down upon them, plundered their baggage, and the Chinese army also followed them closely. In this distressing situation the Indian army remained for seven days, suffering the extreme of famine.