注維摩詰經 6.218

6.218

什曰：如一羅剎變形為馬，有一士夫乘之不疑。中道馬問士夫：「馬為好不？」士夫拔刀示之問言：「此刀好不？」知其心正無畏，竟不敢加害。若不如是，非人得其便也。生曰：恐畏之時情已怯弱，故得便者矣。

[Kumāra]jīva says: Like a rākṣasa that transformed itself into a horse, and a gentleman rode it without suspicion. Midway, the horse asked the gentleman, "Is this horse good?" The gentleman drew his sword, showed it, and asked, "Is this sword good?" Knowing that his mind was upright and without fear, it dared not harm him after all. If he were not like that, non-human beings would take advantage of him. [Dao]sheng says: When one is terrified, one's disposition is already weak, and thus they take advantage.