仁王經疏 2.355

2.355

釋曰：第三、六趣門。謂受假三界四生，乃至六道所成受假，皆幻化眾生。見幻化，非實眾生。

Commentary: Third, the approach of the six destinies. This means that the designation of appropriation in the three realms and four modes of birth, up to the designation of appropriation formed in the six destinies, are all illusory sentient beings. They see illusory transformations, not real sentient beings.