四分律行事鈔資持記 3.34

3.34

Regarding more or less, in the first section: The Dharmaguptaka-vinaya stops at nineteen strips, which is the limit of the middle grade; the Daśādhyāya-vinaya stops at fifteen strips, which is the beginning of the middle grade; both omit the upper grade, hence both say 'if exceeding'. However, since the text is not obvious, it cites the Sarvāstivāda Vinaya Vibhāṣā to list fully the three ranks and nine grades of the great robe. The Karma Commentary states: 'The reason it culminates strictly at twenty-five strips is that it intends to serve as a field of merit for the twenty-five realms of existence.'