俱舍論記 16.115

16.115

「離繫者言至亦被燒害」者，敘外計。離繫者云：不思而殺亦得殺罪，以殺同故，猶如觸火，設不先思亦被燒故。以燒等故，顯無故思亦成殺罪，不同佛法。離繫，梵云尼乾陀。彼謂內離煩惱繫縛、外離衣服繫縛，即露形外道也。

"The Nirgranthas say […] is also burned and harmed": this sets forth the heterodox doctrine. The Nirgranthas say: killing without intention also incurs the sin of killing, because the killing is the same, just as when touching fire, even if one did not intend to beforehand, one is still burned. Because the burning is identical, they show that even without prior intention, the sin of killing is accomplished, unlike in the Buddhadharma. "Nirgrantha" is in Sanskrit nirgrantha. They say that internally they are free from the bonds of defilements, and externally they are free from the bonds of clothing—that is, the naked ascetics.