俱舍論疏 16.59

16.59

論「後起翻前至異此便無」，釋後起中定有無表。以根本業道無簡輕、重發無表故。表業不定，若起隨前屠割等事即有表業，若不起者表業即無。

The Śāstra [states], from "The pṛṣṭha is the reverse of the previous" up to "otherwise it is absent": this explains that during the pṛṣṭha, non-manifest [action] is definitely present, because the maula karmapatha produces non-manifest [action] without discriminating between light and heavy. Manifest action is not fixed: if one undertakes subsequent acts like butchering and carving, there is manifest action; if one does not undertake them, manifest action is absent.