俱舍論記 2.23

2.23

「色界聲界至餘是無記」者，此即別明色、聲。色、聲二界，若善心力等起身、語表攝是善；若不善心力等起身、語表攝是不善；若無記心力等起身、語表攝是無記，及非等起色、聲皆名無記。以無記色、聲中有非等起，故不別說等起。以實而言，無記心亦能等起身、語表業。若別分別，生得、聞、思者皆通色、聲，以皆能作因等起故、加行故發業，如先已說。不善者通色、聲。有覆者通色、聲，謂初定中有覆修惑等起身、語。異熟者謂色。威儀、工巧、通果、自性者，皆通色、聲。異熟等四所不攝者，皆名自性無記。

On the passage that begins, "The form realm and the sound realm… the rest are neutral": this specifically clarifies form and sound. In the two realms of form and sound, if co-arisen by the power of a wholesome mind and subsumed under bodily or vocal manifest form, they are wholesome; if co-arisen by the power of an unwholesome mind and subsumed under bodily or vocal manifest form, they are unwholesome; if co-arisen by the power of a neutral mind and subsumed under bodily or vocal manifest form, they are neutral; and form and sound that are not co-arisen are all called neutral. Because among neutral form and sound there are those that are not co-arisen, co-arisen is not separately mentioned. In reality, a neutral mind can also co-arise bodily and vocal manifest karma. If distinguished separately: innate, hearing, and reflection are all common to form and sound, because they can all serve as causal co-arising and as preparation to initiate action, as previously explained. The unwholesome is common to form and sound. The obscured is common to form and sound: that is, in the first dhyāna, obscured defilements of cultivation co-arise body and speech. That of maturation refers to form. Those of deportment, craft, fruition of supernatural power, and self-nature are all common to form and sound. Whatever is not subsumed under the four—maturation and so forth—is all called neutral by self-nature.