維摩經玄疏 4.126

4.126

答曰：如《大智論》云「若佛弟子、化人、諸天、仙人所說，為佛所印，皆稱為經」，此經佛為寶積開宗，辨於佛國因果，命諸弟子皆述往日為大士所訶，佛默印之；又入室論道，掌擎大眾，還菴羅園，被佛印定，故稱為經也。

Answer: As the Dazhidulun says: "If what is spoken by disciples of the Buddha, emanated beings, the gods, or ṛṣis is sealed by the Buddha, it is all called a sūtra." In this sūtra, the Buddha opens the central theme for Ratnakūṭa, discerning cause and effect in the buddha-land, and commands all the disciples to each recount how in former days they were rebuked by the Great Being, which the Buddha silently seals. Moreover, [Vimalakīrti] enters his room to discuss the path, holds the great assembly in his palm, and returns to the Āmrapālī grove, which is sealed and confirmed by the Buddha; therefore it is called a sūtra.