成唯識論了義燈 7.279

7.279

《論》：「菩薩應無生死法故」者，此意：應無變易生死，非此無生死即難令無生滅之法，生者皆死，一向記故。古德有云：解脫道後即無生滅，得別真常諸相好身，永不遷謝。又云空如來藏即是真如，具足熏已，生常身者，如《惠日論》破。

Regarding the treatise's statement, "Bodhisattvas should lack the dharmas of saṃsāra": the meaning here is that they should lack parināma-saṃsāra; it is not that lacking this saṃsāra constitutes an objection that they lack dharmas of arising and ceasing, for it is definitively declared that whatever is born must die. Ancient masters said: after the vimuktimārga there is no arising and ceasing, and one attains a distinct, truly permanent body endowed with the various marks and signs, never passing away. They also said that the empty tathāgatagarbha is itself tathatā, which, having been fully perfumed, produces a permanent body; this was refuted in the Treatise of the Sun of Wisdom (Huiri lun).