大方廣佛華嚴經疏 25.16

25.16

Sixth, from "skillful in expounding" onwards explains the irreversible Dharma, which is contemplating the Tathāgata's virtue of subjugating all heterodox paths. Because of possessing the aforementioned antidotes, others cannot overturn his activities of benefiting sentient beings, hence it is explained next. This means that both the Dharma of teaching and the Dharma of realization cannot be overturned by others, because there is no other Dharma superior to this. In the text, it first explains the path of teaching; from "able to completely" onwards is the path of realization; from "giving birth to" onwards is the benefit of the two paths.