四分律行事鈔資持記 2.708

2.708

二中，初示緣相。非下，遮簡。恐謂迦提開乞無犯，故特示之。必下，通許。此謂實無，微通濟急，非教所開。交，俱也。限約所須，故云隨量。

In the second, he first shows the marks of the condition. The passage beginning "If not..." excludes and sets aside: fearing that people might think there is no offense in begging during the kaṭhina exception, he specifically indicates it. The passage beginning "He must..." grants an overarching permission: this means that when one truly has none, it slightly permits relieving the emergency, not that it is an exception made by the teaching. Jiao means both. Being restricted by what is needed, it says "according to measure."