The Rashīdī History 171.2

171.2

Thus Shahi Beg Khan, after he had, with the assistance of Sultan Mahmud Khan, defeated the Chaghatai and conquered Mavara-un-Nahr, turned against Sultan Mahmud Khan and took Tashkand [from him]. [Verses] .... When Sultan Ahmad Khan heard of the helpless condition of Sultan Mahmud Khan, brotherly love began to glow in his heart. Seizing the skirt of fraternal affection with the hand of resolution, he, in the course of the year 907, set out towards Tashkand to the relief of his brother, leaving, in his own place, his eldest son Mansur Khan, with absolute authority and power over the whole of Chalish, Turfan, Bai, Kus, Aksu, and Moghulistan. The events that now followed in Tashkand have been already related. When Ahmad Khan returned, defeated and sick, to his capital Aksu, he was met in state by his son Mansur Khan. After entering the city, he became anxious about his illness, and sent Mansur Khan away to Turfan, where the latter remained till his father's death, when he returned to Aksu. But Sultan Mahmud Khan, despising the sovereignty of Aksu, left it and went to Moghulistan. [Verses] ....