成唯識論了義燈 3.25

3.25

二、遍計依他差別。若遍計性，體若空花，不可說作有為之相，常、無常亦爾。若依他性，依緣有故，是無常相。故《中論》第一三相品云：「如是三相，為是有為，能作有為相。為是無為，能作有為相。二俱不然，何以故？若生是有為，即應有三相；若生是無為，何名有為相等？」

Second, the distinction between the imagined and dependent natures: if it is the imagined nature, its substance is like an illusory sky-flower and cannot be said to serve as the characteristics of the conditioned; the same applies to permanence and impermanence. If it is the dependent nature, because it exists depending on conditions, it is an impermanent characteristic. Therefore, the Madhyamakaśāstra, Chapter One on the Three Characteristics, states: "Are these three characteristics conditioned, being able to serve as the characteristics of the conditioned; or are they unconditioned, being able to serve as the characteristics of the conditioned? Neither is admissible. Why? If arising were conditioned, it would possess the three characteristics; if arising were unconditioned, how could it be called a characteristic of the conditioned, and so forth?"