大般涅槃經義記 4.132

4.132

二「法聲」已下明由聞經得菩提果，由聞此經進入住分，是故必定當得菩提，住分即是習種已上。問曰：此人云何許聞定得菩提？如下第二功德中說不作聞相、不作聲相、不作字相、不作句相，乃至不取一切法相故得菩提，非取相聞堪能得之。

Second, from "the sound of the Dharma" onward, it explains that through hearing the sūtra, one attains the fruit of bodhi; by hearing this sūtra, one enters the stage of the abodes, and therefore one will certainly attain bodhi. The stage of the abodes is the lineage of practice and above. Question: Why is such a person granted that by hearing they definitely attain bodhi? As stated below under the second virtue, it is because they do not form the mark of hearing, do not form the mark of sound, do not form the mark of words, do not form the mark of phrases, up to not grasping any marks of dharmas, that they attain bodhi; it is not by hearing with grasping at marks that one is able to attain it.