菩薩戒本疏 2.32

2.32

若佛子！不得畜一切刀杖弓箭鉾斧鬪戰之具，及惡網羅羂殺生之器，一切不得畜。而菩薩乃至殺父母尚不加報，況殺一切眾生？若故畜刀杖者，犯輕垢罪。

"If a disciple of the Buddha, one must not keep any knives, staves, bows, arrows, spears, axes, or implements of warfare, nor any wicked nets, snares, or devices for killing living beings—none of these must be kept at all. A bodhisattva does not even take revenge if someone kills their parents, so how could they kill any sentient beings? If one intentionally keeps knives and staves, one commits a duṣkṛta offense."