法界次第初門 3.42

3.42

二、外空。外空者，外法空。外法者，謂外六入，色、聲、香、味、觸、法。色空無我、無我所。無色、聲、香、味、觸、法亦如是，是為外空也。

Second: external emptiness. External emptiness means that external dharmas are empty. External dharmas are the so-called six external āyatanas: form, sound, odor, taste, touch, and mental objects. Form is empty of self and of what belongs to self. The non-existence of form, sound, odor, taste, touch, and mental objects is also like this; this is external emptiness.