成唯識論述記 1.36

1.36

世親雖是地前菩薩，於唯識性決定信解，雖未證真，亦隨修學，分有所得，名「分淨者」。

Although Vasubandhu was a bodhisattva prior to the grounds (bhūmi), he possessed decisive faith and understanding regarding the nature of vijñapti-mātra; though he had not yet realized reality, he also cultivated and studied in accordance with it and partially attained it; hence he is called “one who is partially pure.”