This article offers some more detail on a Tibetan prayer dating from the ninth century and recently discovered in Mogao Cave 17. This Tridaṇḍaka prayer was perhaps first written, translated or compiled in the the late Tibetan imperial period (circa 600–842). Some phrases in the prayer correspond to the bSam yas Bell Inscription written during the eighth century, and others point towards similarities between this prayer and the Sarvadurgatipariśodhana tantra and closely connected Uṣṇīṣavijaya dhāraṇī sūtra. Analysing the content of this prayer helps to assess early Tibetan Buddhist praise literature and its connections with contemporaneous Indic and Chinese Buddhism. It also links Tibetan imperial literature to later Tibetan Buddhist historiography in Tibet.

本篇文章分析唐代晚期在莫高第十七穴所發現的禱文．禱文的來源不明，有機 會出自吐蕃時代晚期（即600至842公年）的鐘刻文，又可能與《佛頂尊勝陀羅 尼經》密教經典有關。分析這一禱文不但使我們更明確地了解藏傳佛教的稱頌 傳統以及同時代的印度和中國佛教，並且反映吐蕃文學與佛教史之間的關係。