大般涅槃經義記 6.209

6.209

前明無離，「而自說」下就前無離以明有離，得此解時一切煩惱終不起故。以有此德，是故不思。

Previously it clarified non-renunciation; from "yet one naturally says" downward, based on the preceding non-renunciation, it clarifies that there is renunciation, because when attaining this understanding, all afflictions ultimately never arise. Possessing this virtue, it is therefore inconceivable.