四分戒本疏卷第一．第二．第三 2.49

2.49

非親里居士乞衣戒六　凡出家人宜應知足。令三衣具備。長道緣脫。方廣乞求。增貪惱物。招世譏過。損壞不輕。是故聖制。別緣有六。一三衣具足。二無因緣。三非親里居士。四為己乞應量衣。五彼與。六領受入手便犯　闕緣比知。已下正明戒本。此戒因跋難陀從居士強索衣故。諸人譏嫌。佛制戒。

The precept against soliciting robes from unrelated householders, the sixth: In general, those who have gone forth should be content, keeping the three robes complete. If conditions along the path are lacking, only then may they broadly solicit. Increasing greed and distressing others invites worldly censure and fault, causing no small harm; therefore the Sage enacted the precept. The specific conditions are six: 1. the three robes are complete; 2. there are no special circumstances; 3. it is an unrelated householder; 4. one solicits an allowable robe for oneself; 5. the other gives it; 6. receiving it into one's hand immediately constitutes an offense. Deficient conditions can be understood by analogy. Below is the precept text proper. This precept was enacted because Upananda forcibly demanded a robe from a householder, causing people to criticize and despise him, so the Buddha enacted the precept.