金師子章雲間類解 1.10

1.10

前明緣起莫逾色空，幻色俗諦、真空真諦，二諦無礙唯一中道，故次辨色空也。

The previous clarification of pratītyasamutpāda does not go beyond form and emptiness: illusory form is saṃvṛti-satya, and true emptiness is paramārtha-satya. The two truths are without obstruction, being solely the one madhyamā-pratipad. Therefore, next, form and emptiness are distinguished.