淨名經集解關中疏 2.287

2.287

At that time Vimalakīrti knew his thought and said to him, “The Buddha spoke of the eight liberations, which you, Virtuous Sir, have received and practice. Could you listen to the Dharma mingled with the desire for food?”
[Part] two: the rebuke. The eight liberations of meditative absorption are joyous food nourishing the dharmakāya. Food mixed with desire sustains the body of poisonous serpents. People often nourish the poisonous body to the neglect of cultivating the dharmakāya. Therefore, based on his thought, [Vimalakīrti] admonished him.