大士訂正觀音經原序

：吾主西方敎化，流傳經典，皆吾說法時諸弟子所記。爾時言語未達諸夏，就吾師授眞旨，演說敎人，悉土音耳。今年遠傳多，四大洲誦習彌眾，卷帙散亂，多不能正，尙安望體吾眞義耶？因酌訂此本，庶後之誦法者有指南焉。觀自在妙題五明浙

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Text and scans: Shidian Guji (Peking University – ByteDance open ancient texts). Edition details are given per book. Shidian Guji