大比丘三千威儀 1.42

1.42

在床上有五事：一者不得大欠、二者不得吒𠽾（普寸）喈、三者不得歎息思念世間事、四者不得倚壁臥、五者欲起坐當以時。若意走不定，當自責本即起。

When on the bed, there are five matters: first, one must not yawn loudly; second, one must not click the tongue, spit, or laugh loudly; third, one must not sigh and brood over worldly affairs; fourth, one must not recline leaning against the wall; fifth, when wishing to rise and sit, one should do so at the proper time. If the mind wanders unsettled, one should blame oneself as at the beginning and immediately rise.