注維摩詰經 9.60

9.60

肇曰：佛事者，以有益為事耳。如來進止舉動、威儀俯仰乃至動足，未曾無益，所以諸所作為無非佛事。上略言之也。

[Seng]zhao says: A buddha's work simply takes bringing benefit as its affair. In the Tathāgata's moving and stopping, gestures and actions, deportment, bowing and looking up, down to the movement of a foot, there is never a time without benefit; therefore, in all that he does, there is nothing that is not the work of a buddha. The above was merely a brief statement.