四分律行事鈔資持記 1.103

1.103

正明中，初文，上敘文廣。一部律文總六十卷，故云浩博。下指行要，故云大趣。以前僧尼戒本，及後調部，即止持行。二十犍度已後等文，即作持行。文多明犯，意在成持；翻上二持，即成兩犯。宗部之要，豈踰於此，故云止也。

In the direct clarification, the first passage describes above the breadth of the text. The entire Vinaya comprises sixty fascicles in all, hence it is called "vast and extensive". Below, it indicates the essentials of practice, hence it says "the overarching drift". The preceding prātimokṣas for monks and nuns, along with the later Vinayavibhāga, are practices of maintenance through cessation. The texts from the twenty skandhakas onwards are practices of maintenance through action. The text mostly clarifies violations, but the intention lies in fulfilling maintenance; inverting the two maintenances above yields the two violations. How could the essentials of the school's division exceed this? Hence it says "only".