楞伽阿跋多羅寶經註解 3.65

3.65

說通相者，說法逗機之相也。九部者，十二部中之九部也，然有大小不同，若小乘九部，無方廣、無無問自說、無授記之三部。如經云：「我此九部法，隨順眾生說」是也。若大乘九部，無因緣、譬喻、論議之三部，如妙玄所云。此從別說答，通論皆有十二部，亦云十二分教。此中言九部，既云以巧方便隨眾生說，乃從小入大也。言離異不異、有無者，謂離四句已，無妨四說。又云「如應說法」者，應即當也，言當以何法說者，即為說之，令其得度。此如來果後說通之相，為菩薩者不可不學也。

The characteristic of teaching penetration is the characteristic of preaching the Dharma to match dispositions. The nine divisions are nine among the twelve divisions [of teachings]; however, there is a difference between Mahāyāna and Hīnayāna. For the Hīnayāna nine divisions, they lack the three divisions of vaipulya, spontaneous discourse without inquiry (udāna), and prediction (vyākaraṇa). As a sūtra states: ‘This ninefold teaching of mine is preached in accordance with sentient beings.’ For the Mahāyāna nine divisions, they lack the three divisions of nidāna, avadāna, and upadeśa, as stated in the Miaoxuan. This answers from the perspective of specific classification; generally speaking, both have twelve divisions, also called the twelvefold canon. Mentioning nine divisions here, since it says ‘using skillful means to preach in accordance with sentient beings,’ means entering the Mahāyāna from the Hīnayāna. Saying ‘free from identity and difference, existence and nonexistence’ means that having left behind the catuṣkoṭi, there is no impediment to the four modes of discourse. Furthermore, saying ‘preaching the Dharma as appropriate’ means whatever is fitting; that is, preaching whatever Dharma is appropriate to preach, so as to enable them to attain deliverance. This is the characteristic of the Tathāgata's teaching penetration subsequent to fruition; those who are bodhisattvas must not fail to learn it.