大般涅槃經義記 9.65

9.65

二「一切作」下，略明業體有定不定，於中初明業有輕重、下明此二有定不定。

Second, from 'all actions' below, briefly clarifying that the substance of karma has determinate and indeterminate [types]; within this, it first clarifies that karma has light and heavy, and below clarifies that these two have determinate and indeterminate.