四分律行事鈔資持記 3.121

3.121

次明長衣，服飾中，初科。彼云：大衣五日成，七條四日成，五條二日成，長衣一日成。若據通論，但使受持之外，俱名為長。今此且對受持，欲明長衣是餘小物，故約一日可成，非謂不通大小。

Next, explaining extra robes, in [the section on] clothing and adornment, the first heading: that text says: 'A saṅghāṭī takes five days to make, an uttarāsaṅga four days, an antarvāsas two days, and an extra robe one day.' If based on a general discussion, anything outside the robes taken and maintained is called 'extra'. Here, it is merely contrasted with those taken and maintained to clarify that an extra robe is another small item, and therefore it is treated as something that can be made in one day; it does not mean this does not apply to both large and small robes.