成唯識論述記 5.807

5.807

述曰：此師正義。於中有五：一、標宗；二、立理；三、釋難；四、引證；五、解違。此初二也。三性容俱，非一切時皆必定俱；有俱時故，論言「容」也。此立義，已下為理。

The Commentary states: This is this master's correct doctrine. Within it there are five: 1. stating the tenet; 2. establishing the reasoning; 3. resolving objections; 4. citing proofs; 5. resolving contradictions. These are the first two. The three natures can possibly occur together; it is not that they are necessarily together at all times; because there are times when they are together, the treatise says "can possibly." Having stated the thesis, below is the reasoning.