淨名經集解關中疏 2.407

2.407

佛告諸菩薩。有盡無盡解脫法門。汝等當學此下二答。文四。初標名。二略釋。三廣釋。四結勸。此初也。肇曰。有為法有三相故有盡。無為法無三相故無盡。

The Buddha told the bodhisattvas: "There is a dharma gate of liberation called 'the exhaustible and the inexhaustible', which you all should study." Below, the second part answers. The text has four parts: first, stating the name; second, a brief explanation; third, an extensive explanation; fourth, concluding encouragement. This is the first. Sengzhao says: "Conditioned dharmas have the three characteristics, therefore they are exhaustible. Unconditioned dharmas lack the three characteristics, therefore they are inexhaustible."