大乘義章 20.60

20.60

次第五門三業分別。身業無失、身隨慧行，是其身業。口業無失、口隨慧行，是其口業。餘不共法，悉是意業。三業如是。

Next is the fifth gate, distinguishing them by the three activities. Bodily activity without fault and bodily action following wisdom are bodily activity. Vocal activity without fault and vocal action following wisdom are vocal activity. The remaining unshared attributes are all mental activity. The three activities are as such.