大般涅槃經疏 28.26

28.26

「我往一時」下，第十六爭論五戒八戒具受不具受。薩婆多具受乃得，《成論》不具亦得。如《優婆塞戒經》云「直受三歸未受一戒，即名無分優婆塞。如是二分、多分、滿分。」又人師解云：併受五，但持一二名一二分（云云）。文為二：先明五戒不具、次明八戒具，但是互出。

From "I, at a past time" below, this is the sixteenth debate, on whether the five precepts and eight precepts are taken in full or not taken in full. For the Sarvāstivādins, one attains them only if taken in full; in the *Tattvasiddhi-śāstra*, one attains them even if not in full. As the *Upāsaka-śīla Sūtra* says: "If one directly receives the three refuges without yet receiving a single precept, one is called a fractional upāsaka. Likewise, there are the two-fraction, multi-fraction, and full-fraction." Furthermore, masters have explained: "One takes all five together, but upholding only one or two is called one-fraction or two-fraction" (and so forth). The text has two parts: first clarifying that the five precepts are not in full, and next clarifying that the eight precepts are in full; they are merely presented reciprocally.