請觀音經疏闡義鈔 1.5

1.5

「請觀音經」四字，是疏之別名。「疏」即通名，以解釋諸經通名疏故，以別簡之，略標四字。疏者，疎也、決也。疎理經文，決擇義趣也。然智者釋經，解題稱玄義、解文稱文句，玄文合成一部者則題為疏。今即合者，故題疏焉。

The four characters 'Qing Guanyin jing' are the specific title of the commentary. 'Commentary' (shu) is the general title. Because 'commentary' is the general title for explaining various sūtras, the four characters are briefly indicated to distinguish it specifically. 'Shu' means to loosen and to decide; it untangles the sūtra text and discerns its purports and significance. Furthermore, when Zhizhe explained a sūtra, explaining the title was called 'profound meaning' (xuanyi), while explaining the text was called 'words and phrases' (wenju). When the profound text and the text are combined into a single work, it is titled a 'commentary' (shu). Now, because they are combined here, it is titled a 'commentary.'