瑜伽論記 3.84

3.84

梵言牟尼者寂默義，此名寂靜，證寂靜理故。若依下聞慧地中，一切聖者，身中所有身語二業及心為三淨業體，基云：心者意業，與此不同，彼說聖者身牟尼業唯取無漏有漏業名三淨業，不對異生以辨差別，今此對凡聖內外道異，故清淨業唯在異生，聖者身中所有三業皆名牟尼業，觀對異故亦不相違。

The Sanskrit word muni means silence (jāpa); here it is called serenity (śānta), because one realizes the principle of serenity. If one relies on the stage of wisdom arisen from listening below, within all noble ones, all bodily and vocal karmas and the mind within the body constitute the essence of the three pure karmas. Ji says: 'Mind' refers to mental karma, which differs from this text; there it is said that the bodily and muni karmas of a noble one encompass only taintless karma, whereas tainted karma is called the three pure karmas, without making distinctions in contrast to ordinary worldlings. Here, however, the contrast is made between ordinary worldlings and noble ones, and between non-Buddhists and those of the internal teaching; hence pure karma pertains solely to ordinary worldlings, while all three karmas within the body of a noble one are called muni karmas. Because the comparative perspectives differ, they are not mutually contradictory.