金剛經纂要刊定記 2.95

2.95

Regarding 'transmitted to Vasubandhu': Some say that because Vasubandhu had long practiced the Hīnayāna and had only recently turned to the Great Teaching, it was necessary to cleanse his emotional attachments; thus it was transmitted to him to sever doubts and attachments and make clear the stages of practice, as can be seen in the main text.