四分律刪繁補闕行事鈔 2.215

2.215

準此以言，僧次一種，唯局不集結罪；乞食別請，若集不集俱結。

Judging from this, the single category of monastic rotation incurs an offense exclusively confined to failure to assemble; whereas alms-begging and individual invitations incur an offense whether assembling or failing to assemble.