仁王經疏 3.173

3.173

釋曰：第二、釋通伏難。文有兩節：初牒三伏難、後「而不可」下標宗。略答十善菩薩，有其三義：一以十千劫行十正道，發菩提心，當入習忍位。三亦常學三伏忍。以具三義，謂應不退。如何說言有退有進？故作此言。雖有三事，而不可字名是習種性，是名不定人。

Explanation: Second is resolving the underlying objection. The text has two sections: first it cites the three underlying objections, and later, from "yet they cannot be" downward, sets forth the main doctrine. It briefly answers that a bodhisattva of the ten virtues has three aspects: first, practicing the ten correct paths for ten thousand kalpas; second, giving rise to the mind of awakening, by which he will enter the stage of the patience of practice; third, also constantly learning the three suppression patiences. Possessing these three aspects, one would think he should not retrogress. Why then is it said that there is retrogression and advancement? Therefore this is stated: although there are these three things, they cannot yet be designated with the name of the lineage of practice; this is called an undetermined person.