四分律刪繁補闕行事鈔 2.369

2.369

次作持。對制門中法、事者。法謂教行也，教謂律藏，行謂對治；事唯可學，衣鉢體量等是。就聽門中，亦對法、事。法謂處分說淨等；事唯可學，長衣房舍等。所以不通不可學者，由心迷忘，非學能了，廣如後述。此謂順教而作，無違故，皆名作持也。

Next, observance by action. In reference to dharmas and practical matters within the prescriptive category: "dharmas" refers to teaching and practice—teaching refers to the Vinaya Piṭaka, and practice refers to antidotes; "practical matters" refers solely to what can be learned, such as the material and dimensions of robes and bowls. Within the permissive category, it also refers to dharmas and practical matters: "dharmas" refers to formal authorization, declaration of purification, and so forth; "practical matters" refers solely to what can be learned, such as extra robes, lodgings, and so forth. As for why it does not extend to what cannot be learned: because of confusion and forgetfulness in mind, it is not something that can be understood by learning, as explained at length below. This refers to acting in accordance with the teaching without violation; therefore all are called observance by action.