俱舍論記 16.161

16.161

「一切染心至流至此中」者，釋第四句。准此文中，雜穢語有二緣：一一切染心、二所發諸語。所以者何？染所發言皆雜穢語故。准前第一句中「語」字流至第四句中，應言諸染污心語說名雜穢語。此師意說：雖有獨起雜穢語，若前三語起時必兼雜穢。然雜穢語他不領解，非四語業道收。故《婆沙》一百七云「謂如有一，獨空閑處作如是說：無惠施、無親愛、無祀祠。如是等語惡行，世間有情不生領解，非四所攝。准彼論說，更加一緣，所謂解義。

Regarding "All defiled mind ... flows down to this [definition]": This explains the fourth line. According to this text, frivolous talk has two conditions: first, all defiled minds; second, all words uttered. Why is that? Because all words uttered from defilement are frivolous talk. According to the character "speech" in the first line flowing down into the fourth line, it should read: "all words of a defiled mind are called frivolous talk." What this master means to say is: although there is frivolous talk that arises independently, when the preceding three vocal [actions] arise they inevitably include frivolous talk. However, if another does not comprehend the frivolous talk, it is not included among the four vocal courses of karma. Therefore Mahāvibhāṣā 107 says: "Suppose a person in an empty, quiet place speaks like this: 'There is no giving, no affection, no sacrifice.' When worldly sentient beings do not generate comprehension of such vocal misdeeds, they are not subsumed under the four [courses of karma]." According to that treatise, one more condition is added, namely comprehending the meaning.