Abstract
Altun Yaruq Sudur is a sūtra which belongs to Old Turkic-Mahāyāna Buddhism. The text includes the essence and philosophy of Buddhism, as well as legends and rituals of Buddha. The sūtra was translated from Chinese to Uighur by Šingko Šäli Tutung. Old Turkic translation has a lot of manuscripts. Among these, the nearly complete manuscript is preserved in the archive of the Institute of Oriental Manuscripts of the Russian Academy of Sciences (IOM RAS) in St. Petersburg, but there are many more manuscripts and fragments in the Berlin-Brandenburg Academy of Sciences Turfan collection. In this article, some unpublished Turfan fragments in the Oriental Department of the Berlin State Library are edited. Finally, I discuss Old Turkic verb yaqčırtdur- which probably occurs for the first time in U 2546 (T II 701) during the Old Turkic period.