說無垢稱經疏 1.4

1.4

The Commentary says: In now explaining this sūtra, it is divided into six headings in total: first, the causes for the arising of the sūtra; second, the main theme and lineages of the sūtra; third, explaining the essence of the sūtra; fourth, recounting the differences among versions of the sūtra; fifth, the derivation of the sections and chapters; sixth, explaining the meaning of the root text.