On Yuan Chwang's Travels in India, 629–645 A.D. v2.c26.s3.6

v2.c26.s3.6

Yuan-chwang then made his way to the Wakhjīr Pass, on the watershed of the Oxus and Yarkand rivers, and proceeded through the Tāghdumbāsh Pāmīrs to Tashkurghān, the capital of Sarikul (Ka-p'an-t'o, or Kie-p'an-to). Passing along the western flank of the huge mountain named Mustāgh-Ata, and traversing a region named Osh (Wu-sa, or U-sha) he ultimately emerged in the plain of Kashgar (Kāshghar, Ka-sha, or Kie-sha).²