大比丘三千威儀 1.40

1.40

暮入戶有五事：一者欲入當住，三彈指入，不得使戶有聲；二者履污泥當於外脫去；三者當如法解袈裟著常處；四者當取履拭持著屏處；五者已當澡洗却住隨意所願。

When entering the room in the evening, there are five matters: first, when wishing to enter, one should pause, snap the fingers three times, and then enter, not causing the door to make a sound; second, if the shoes are soiled with mud, one should take them off and remove them outside; third, one should properly take off the kāṣāya according to the rule and place it in its regular location; fourth, one should take the shoes, wipe them clean, and put them in a secluded spot; fifth, having done so, one should wash, step back, and rest according to one's wish.