注維摩詰經 2.358

2.358

肇曰：小乘入定則不食，食則不入定。法身大士終日食而終日定，故無出入之名也。生曰：比丘食法，食時作不淨觀觀食也。雖入此定，不見入也。不見入為非入耳，非起定也。

[Seng]zhao says: When the Hīnayāna enters concentration, they do not eat; when they eat, they do not enter concentration. The mahāsattva of the dharmakāya eats all day long and is in concentration all day long, and therefore has no notion of entering or exiting. [Dao]sheng says: In the rule of eating for a monk, at the time of eating one practices the contemplation of impurity regarding the food. Although entering this concentration, one does not perceive entering it. Not perceiving entering constitutes 'not entering'; it is not arising from concentration.