大方廣佛華嚴經隨疏演義鈔 17.19

17.19

疏「四前後襵疊科」者，雖有十重，總為二分，從後倒襵，節節除後，就前分二故。

Regarding the Commentary's statement, 'Fourth, the division by folding and layering from beginning to end': Although there are ten layers, they are synthesized into two sections; folding backwards from the end, step by step removing the rear, dividing them into two based on the preceding.