瑜伽論記 11.34

11.34

基云：言修無常想、苦想、無我想者，此為三法印也，不言空者即無我同，故不說。又言其涅槃修勝利想者，謂此為誦言常誦也。伽他為頌，嗢拕南為撮施，此言於其涅槃修勝利想，則常誦也。

Ji says: as for saying 'cultivating the perception of impermanence, the perception of suffering, and the perception of non-self,' these are the three Dharma seals. That it does not mention emptiness is because it is identical to non-self, and thus it is not stated. Furthermore, regarding saying that one cultivates the perception of excellent benefit with respect to nirvāṇa, this refers to recitation, meaning constant recitation. Gāthā is verse, and udāna is a condensed presentation; this says that with respect to nirvāṇa one cultivates the perception of excellent benefit, which is constant recitation.