四分律行事鈔資持記 2.1549

2.1549

分齊中，就教為二，初標章。學下，正釋，上明不學。學謂持奉。必無中廢，故言始終。始據初受，終約盡形。下明無知。限五夏者，受戒法中，制五夏學；有所未知，未即結罪；五夏已後，於事不了，顯是解慢，故隨結犯。

In the boundaries, there are two divisions according to the teaching: first, the heading of the section. From 'study' below, the direct explanation: the upper part explains failing to learn. 'Study' means upholding and practicing; since it must never be abandoned midway, it says 'from beginning to end'. 'Beginning' is based on first receiving [the precepts]; 'end' refers to the end of one's bodily life. The lower part explains ignorance. 'Limiting to five rains retreats': in the ordination ritual, five rains retreats of study are enjoined; if there is something not yet known, an offense is not immediately imputed; after five rains retreats, not understanding matters reveals slackness in comprehension, so an offense is imputed accordingly.