大比丘三千威儀 2.23

2.23

受案有五事：一者當持手巾并受、二者當決闊尺六、三者當持手巾連案若机足、四者當却膝、五者兩肘不得離膝。

Receiving the table has five matters: first, one should hold the hand-cloth and receive it together; second, one should leave a clear span of one foot and six inches; third, one should hold the hand-cloth in contact with the table or the leg of the stool; fourth, one should draw back one's knees; fifth, both elbows must not leave the knees.