The Compendium of Bheḷa 6.1.25

6.1.25

bhojanārthaṃ hi ṣaḍrātraṃ peyā deyā bubhukṣite | kṣutpipāsāpahā pathyā śakṛnmūtrānilāpahā ||

For a hungry person, gruel should be given as food for six nights; / it dispels hunger and thirst, is wholesome, and removes feces, urine, and wind.