維摩經疏 1.10

1.10

下明利他。演法無畏如師子吼。自心不怯。其所講說乃如雷震。說我益物。又冥無畏說□□□　講如雷震。語能生善。前中初言演法無畏。法說利他。依大智論。菩薩別有四種無畏。一總持無畏。於法廣知不畏屈梪。二知根無畏。明了諸根隨而授化不懼違失。三斷疑無畏。隨問能決不懼不堪。四答難無畏。隨難能通不懼屈滯。如師子吼。喻以顯之。後中講說法說利他。如雷喻顯。天雷一動卉蟄生永。法音一闡道根競長。故取為喻。

Below, parārtha is clarified. "Expounding the Dharma without fear, like the lion's roar." Their own minds are not timid, and what they expound is like the rumble of thunder. Preaching [the Dharma] benefits beings. Furthermore, […] without fear, preaching […] expounding like thunder-rumble, the words can generate the good. In the former, it first says "expounding the Dharma without fear." This is the literal explanation of parārtha. According to the Mahāprajñāpāramitopadeśa, bodhisattvas separately have four kinds of fearlessness: first, fearlessness of dhāraṇī: having vast knowledge of the Dharma, they do not fear being bent or obstructed; second, fearlessness of knowing the faculties: clearly understanding all faculties and instructing accordingly, they do not fear transgression or error; third, fearlessness of severing doubts: able to resolve [doubts] according to questions, they do not fear being incapable; fourth, fearlessness of answering objections: able to resolve [difficulties] according to objections, they do not fear being blocked or halted. "Like a lion's roar" uses a metaphor to make it manifest. In the latter, "expounding the Dharma" is the literal explanation of parārtha. "Like thunder" is made manifest through a metaphor. When celestial thunder strikes, plants and hibernating insects come to life; when the Dharma sound is proclaimed, the roots of the Way eagerly grow. Therefore it is taken as a metaphor.