瑜伽師地論略纂 4.135

4.135

行中，「於自相續中已作未滅」者，謂意行。　「又由意行故，起身語行」者，身語二行。由此三行故識有。　「彼無故，彼緣識亦無」等者，謂種子識以行為緣，行無故，種識無；行若全無，其識亦無。或此種子識全無故，現識亦無。

Among formations, "having been done within one's own continuity and not yet perished" refers to mental formations. "Furthermore, due to mental formations, physical and verbal formations are aroused" refers to the two formations of body and speech. Due to these three formations, consciousness exists. "Because that is absent, consciousness conditioning it is also absent," and so forth, means that seed-consciousness takes formations as condition; because formations are absent, seed-consciousness is absent. If formations are entirely absent, that consciousness is also absent. Or, because this seed-consciousness is entirely absent, active consciousness is also absent.