四分律行事鈔資持記 2.819

2.819

略示中，初示開貿。上句指律，文見不犯。次句準餘部，如下《僧祇》、《十誦》。若據下，引《四分》衣法，亦開比丘，不獨他部。《四分》下，示犯相。律云：以時藥易時非時七日盡形波利迦羅衣，如是互易。（隨一一物為頭，以歷諸物。）疏云：此指緣起說，若以錢買衣，屬此戒攝；反則前戒。（准知販買兩戒，但據所買以分。）

In the brief demonstration, first it demonstrates the allowance for trading: the upper clause refers to the Vinaya, the text of which appears under non-offense. The next clause is based on other schools, such as the *Mahāsāṃghika-vinaya* and *Daśādhyāya-vinaya* below. From 'If according to' down, citing the robe-dharmas of the *Dharmaguptaka-vinaya*, it also allows bhikṣus [to trade], not exclusively other schools. From 'In the Dharmaguptaka-vinaya' down, it shows the marks of violation. The Vinaya states: 'Exchanging timely medicines for untimely medicines, seven-day medicines, life-long medicines, parikkhāra robes, and mutually exchanging like this.' (Taking each item in turn as the lead and running through all items.) The commentary says: this refers to the origin story; if one buys robes with money, it is subsumed under this precept; the reverse belongs to the previous precept. (Accordingly, one knows that the two precepts of commercial trading and buying are distinguished solely based on what is purchased.)