四分律行事鈔資持記 2.600

2.600

問中。以月望衣，從十一日至二十九，隨足即成；已出十日，不容更開；但線絣裁割，即免長過（便加受故）。此則與上指作用違，故須會通。答中，約先有無以分兩別，初明月望。彼因但三衣比丘伽梨故爛，十日不辦，遂開一月；故知先有明矣。上下，決上指作，不開本有。

In the question: Because of the month-long robe [allowance], from the eleventh day to the twenty-ninth day, whenever it is sufficient it is completed; having exceeded ten days, no further exception is permitted; merely by chalking lines, cutting, and stitching, one avoids the fault of an extra robe (because one then performs adhiṣṭhāna). This then contradicts the above designating and making, so they must be harmonized. In the answer, it makes two distinctions based on whether one previously had [a robe] or not: first, it clarifies the month-long robe. That was because a monk who had only three robes had his saṅghāṭī become worn out and could not manage within ten days, whereupon one month was permitted; therefore we know clearly that he originally had one. From 'above' downwards resolves the above designating and making, which does not permit what was originally possessed.