大比丘三千威儀 2.92

2.92

復有五事：一者已白彼去，不得於後說某今日所作為強自用耳。二者不得言我今日欲難某，但欲用某故置之耳。三者和尚阿闍梨有所過當隨，若教先去有所取，當如教受語。四者若自共歸，不得先歸入門，當隨後倚右面，若行日中不得蹈師影。五者人欲止留飯者，當報師以去，不得使留止飯。

There are further five matters: first, having already reported to him and departed, one must not say behind his back, 'What so-and-so did today was merely being willful.' Second, one must not say, 'Today I wanted to challenge so-and-so, but out of consideration for someone else, I let it be.' Third, when one's upādhyāya or ācārya has an errand, one must follow along; if instructed to go ahead to fetch something, one should accept his instructions and act accordingly. Fourth, if returning together, one must not enter the gate first, but must follow behind, leaning to the right side; if walking in the sun, one must not step on the master's shadow. Fifth, if someone wishes to detain one for a meal, one must report to the master before leaving, and must not allow oneself to be detained for a meal [without permission].