成唯識論述記 4.365

4.365

述曰：下解徵也。論主釋言：此於我前理非為過難。經中說三法互相依者，謂若是處具有三法，即欲、色界無間轉者，可恒相持，不爾便無恒相持用。謂有間轉名不爾者，如六轉識無恒持用。經言：三法更互相依，非令無色亦有煖法。

The Commentary states: Below is resolving the query. The treatise master explains: This is not an objectionable fault for my previous reasoning. When the sūtra states that the three dharmas mutually rely on one another, it means that wherever the three dharmas are fully present—namely, in the desire and form realms—those without interruption or changing can perpetually sustain one another; otherwise, there would be no function of perpetual mutual sustaining. "Otherwise" refers to having interruption and changing, just as the six evolving consciousnesses lack a perpetual sustaining function. The sūtra says: "The three dharmas mutually rely on one another," not causing the formless realm also to have the dharma of warmth.