俱舍論頌疏論本 15.13

15.13

釋曰：上兩句得惡戒方便，下兩句得處中方便。得不律儀由二種因：一者由作、二者由誓受。由作者，謂彼生在不律儀家，初作殺等，起加行時便發惡戒。謂生屠家，少小見殺，起誓心輕，不發惡戒，要作殺等得不律儀。二由誓者，謂生餘家，為活命故，懷殺害心，便發誓言：「我從今日乃至命終，謂我當作如是事業養活自身。」起誓心時，便發惡戒。謂生餘家，少小已來未曾見殺，誓心必重，故發惡戒。

The explanation says: The first two lines concern the expedient means of acquiring unwholesome precepts; the last two lines concern the expedient means of acquiring the intermediate. The acquisition of non-discipline is due to two causes: first, through action; second, through undertaking by vow. "Through action" means that when one is born into a family of non-discipline, at the time of first performing killing and the like and initiating preliminary preparation, the unwholesome precepts are generated. That is, being born into a butcher family, having witnessed slaughter from childhood, the thought of making a vow is weak and does not generate unwholesome precepts; one must perform killing and the like to acquire non-discipline. Second, "through undertaking by vow" means that when born into another family, for the sake of livelihood, harbouring thoughts of killing, one makes a vow, saying: "From this day until the end of life, I shall perform such actions to support myself." At the time of making this vow, the unwholesome precepts are generated. That is, being born into another family, never having witnessed slaughter since childhood, the resolution of the vow is necessarily firm; therefore, the unwholesome precepts are generated.