大比丘三千威儀 2.24

2.24

There are further five matters: first, having received it, do not move away; second, one must not frantically look left and right; third, having moved away, one should receive it following the sthavira; fourth, if the person [serving] does not respond, one must not eat; fifth, if one has an old conflict with that person that causes difficulty, one may make suitable arrangements oneself or call someone oneself.