Ashtangasamgraha 27.22

27.22

peyāṃ vilepīmakṛtaṃ kṛtaṃ ca yūṣaṃ rasaṃ trīnubhayaṃ tathaikam |

krameṇa seveta naro 'nnakālān pradhānamadhyāvaraśuddhiśuddhaḥ ||

savarṇo nīrujaḥ śophastaṃ vidyādupaśīrṣakam ||

Thin gruel, thick gruel, unseasoned and seasoned soup, and meat broth—a person purified by superior, middling, or inferior purification should take each of these three times, twice, or once, respectively, at meal times.

Swelling of the same color as the skin and painless: one should know that as upaśīrṣaka.