北京大学图书馆所藏的西夏文残片共7页,曾见收于《北京大学图书馆藏敦煌文献》第2册,编号从X1到X5。2006年编入《中国藏西夏文献》(12)(北京编),编号从B21.004至B21.011。这七叶残纸已确定出处的只有B21.004至B21.006共3页,同为《六祖大师法宝坛经》的断片,背面写有“瓜州审案记录”。其他4页残片也都是佛经,此前未见解读,经查证,其中的B21.010残片出自于《大方广佛华严经》第42卷。 A total of seven pages of Xixiawen relics hidden in the Peking University Library have been collected in Volume 2 of the “Dunhuang Documents Collected in the Peking University Library” and numbered from X1 to X5.2006 into “Chinese Tibetan Literature in Western Xia” (12) ( Beijing series), numbered from B21.004 to B21.011. This Aescin paper has been identified at the source only B21.004 to B21.006 a total of 3 pages, with the “Ancestral Temple of the ancestors of the ancestors of the ancestors,” the fragment, written on the back “Guazu trial record.” The other four pages are also Buddhist scriptures, had not been read, verified, one of the B21.010 fragments from the “generous Guangfo Sutra” Volume 42.