成唯識論述記 7.702

7.702

述曰：謂有漏者，簡無漏根。無漏根發無漏識，無違故。「不共」者，簡有漏第八識，是共故，可為無漏識依。「必俱」者，顯非等無間緣，等無間緣根前後生故，得依有漏。「同境」者，簡第七為六依，彼雖有前義，非同境故，此有漏根發無漏識，不相應故。外人復云：如六依七亦依有漏，有何不相應，今復量成？

The Commentary states: Saying "sāsrava" excludes anāsrava sense faculties. An anāsrava faculty generating an anāsrava consciousness presents no contradiction. "Uncommon" excludes the sāsrava eighth consciousness; since it is common, it can serve as a basis for an anāsrava consciousness. "Invariably co-existent" shows that it is not the equal-and-immediate condition (samanantara-pratyaya); because the faculty acting as the equal-and-immediate condition arises successively, it can rely on the sāsrava. "Having the same cognitive object" excludes the seventh consciousness acting as a basis for the sixth; although it has the preceding properties, it does not share the same cognitive object. Hence, for this sāsrava faculty to generate an anāsrava consciousness is not concordant. The opponent asks again: "Just as the sixth relies on the seventh, it also relies on what is sāsrava; what is discordant about this?" Now he proves it further through an inference (anumāna):