Uighur Version of Abhidharma-kos’a-bhāsya-tikā Tattvārtha-nāma(Or.8212/75A-B)unearthed from Dunhuang served as one of the largest and longest text in Uighur in a well-preserved condition.According to the Uighur inscription,the date of the manuscript was Yuan Dynasty(1271-1368).Mongolian inscription written on at the copy ends(1904).It shows a clear fact that before the manuscript was housed in the Hidden Library(Cave 17),it has been hidden in Cave 464 at the northern area of Mogao Grottoes,Pelliot’s No.181 which was built in the Yuan Dynasty.The Mongolian inscription on this scroll give us a inclusion that re-considerations on the sources of material from the Hidden Library by the hand of Taoist Wang.
