宗鏡錄 84.12

84.12

答。所受用法。但是六塵。因緣故生。因緣故滅。決定內無人能受。外無塵可用。十八空論云。外空者。亦名所受空。離六外入。無別法為可受者。若諸眾生所受所用。但是六塵。內既無人能受。外亦無法可受。即人法俱空。唯識無境。故名外空。以無境故。亦無有識。即是內空。乃至十八空。

Answer: The dharmas experienced and used are merely the six dusts. Arising due to causes and conditions, they cease due to causes and conditions. Definitely, inside there is no person who can experience, and outside there is no dust that can be used. The Treatise on the Eighteen Kinds of Emptiness says: 'External emptiness is also called emptiness of the experienced. Apart from the six external sense bases, there are no other dharmas that can be experienced. If that which all sentient beings experience and use is merely the six dusts, since inside there is no person who can experience and outside there is no dharma that can be experienced, then both person and dharmas are empty; consciousness-only lacks realms, and is therefore called external emptiness. Because there is no realm, there is also no consciousness, which is internal emptiness, and so forth up to the eighteen kinds of emptiness.'