Apastambasmriti 4.8

4.8

etaireva yadā spṛṣṭaḥ prāyaścittaṃ kathaṃ bhavet
bhojane ca trirātraṃ syātpāne tu tryahameva ca

when one is touched by these very ones, how would the penance be? / In the case of eating, it would be a period of three nights, and in drinking, just three days;