四分律行事鈔資持記 3.598

3.598

三中。三重門者，據有言之；此間俗舍，不喜輒入，止可簾障之外，避譏疑也。三彈指者，使內知故；今或振錫代之，彌善。不便去者，遲留待出，不出方去。先噉熟者，無所損故。

In the third [part], 'triple gate' is stated on the basis of its presence; in this country, lay households do not welcome people abruptly entering, so one may only remain outside the screens and curtains to avoid censure and suspicion. 'Snapping the fingers three times' is to let those inside know; today, shaking the khakkhara in its stead is even better. 'Not leaving immediately' means tarrying and waiting for them to come out; only if they do not come out does one leave. 'First eating what is cooked' is because it causes no harm.