法華義疏 2.230

2.230

有人言：初戒以止惡為體，後二以行善為體。今明不爾，若後二以行善為體，初受戒時未修行度人，即應但受得一戒，菩薩之戒便不具足。今明三戒並以止惡為體，初戒止息威儀之惡，次止不行善之惡，後止不度人之惡，故初受戒時具得三戒，但後時修行善法及度眾生耳。

Some say: the first discipline takes stopping evil as its essence, while the latter two take practicing good as their essence. Now we clarify that this is not so: if the latter two took practicing good as their essence, then when first receiving the precepts, before having cultivated practices or delivered people, one would receive only one discipline, and the bodhisattva precepts would be incomplete. Now we clarify that all three disciplines take stopping evil as their essence: the first stops the evil of comportment, the next stops the evil of not practicing good, and the last stops the evil of not delivering people. Therefore, when first receiving the precepts, one completely acquires the three disciplines, but only later cultivates wholesome Dharmas and saves sentient beings.