四分律行事鈔資持記 1.771

1.771

初釋邊罪。從喻為名，文中備釋。前依本律，且據具足。下準《多論》，通前四戒，皆號邊罪。然俗戒中大小通制；準僧篇聚，定約大重。所以具戒須云捨者，犯重不捨，自號二滅；欲明成障，故約捨來。後三犯即障戒，不論捨與不捨。

First, explaining the borderline offense (pārājika): It takes its name from an analogy, and the text fully explains it. Earlier, relying on the root Vinaya, he provisionally based it on the full ordination. Below, following the Sarvāstivāda Vinaya Vibhāṣā, extending to the preceding four precepts, all are called borderline offenses. However, among the lay precepts, the major and minor are universally prohibited; following the monastic chapters and aggregates, it is definitely determined by the great grave [offenses]. The reason why the full precepts must state 'relinquishing' is that if one commits a grave offense without relinquishing, it is called the twofold extinction; wishing to clarify that it forms an impediment, it is therefore explained in terms of relinquishing. For the latter three offenses, committing them immediately impedes the precepts, regardless of whether one relinquishes or does not relinquish.