成唯識論述記 5.797

5.797

述曰：自下第二諍，申同異。初文有三：一、標宗；二、立理；三、釋難。此初二也。所以者何？此六轉識同緣外境，諸三性等，互相違故。《瑜伽》第三說，又非五識有二剎那相隨俱生，亦無展轉無間更互而生，五識生已，從此無間必意識生等。五識既無俱生之義，是故五識三性不俱。

The Commentary states: Below is the second part: setting forth agreements and differences in disputation. In the first text there are three: 1. stating the tenet; 2. establishing the reasoning; 3. resolving objections. These are the first two. Why is this? These six transformed consciousnesses jointly cognize external objects, and the various three natures mutually conflict. Yogācārabhūmi, Fascicle 3, says: Furthermore, it is not the case that the five consciousnesses have two moments arising together in sequence, nor do they arise mutually and immediately one after another; once a fivefold consciousness arises, from this immediately the mental consciousness must arise, etc. Since the five consciousnesses lack the sense of arising together, therefore the three natures of the five consciousnesses do not occur together.