The Compendium of Caraka 8.3.27

8.3.27

pratyāgate koṣṇajalāvasiktaḥ śālyannamadyāttanunā rasena/
jīrṇe tu sāyaṃ laghu cālpamātraṃ bhukto 'anuvāsyaḥ parivṛṃhaṇārtham//

When it has returned, sprinkled with warm water, he should eat śāli rice with thin meat soup.
When digested in the evening, having eaten lightly and in small measure, he is to be given an unctuous enema for nourishment.