四分律行事鈔資持記 3.36

3.36

三中。《聖跡記》有二卷，靈裕法師撰。其文但示條相。《智論》明其衣體，故引以成之。（今有反求細布，有過絹直；放彼拈此，未善教意。）言大準者，謂九品之衣，隨力所辦，從本須作二十五條；力不足者，次第減降，下至九條；以佛但著下品上衣，故知足以為準。

In the third section: The Shengji ji (Record of Sacred Traces) has two fascicles and was composed by Dharma Master Lingyu. Its text only shows the form of the strips. The Mahāprajñāpāramitā-śāstra clarifies the fabric of the robe, hence it is cited to complete it. (Nowadays there are those who instead seek fine cloth that exceeds the price of silk; letting go of the former and taking up the latter is not being adept in the teaching's intention.) As for 'the general standard', it means that among robes of nine grades, one makes them according to one's capacity; originally one must make twenty-five strips, but if one's capacity is insufficient, one reduces them step by step down to nine strips; because the Buddha only wore the upper robe of the lower grade, we know this is sufficient to serve as the standard.