The Compendium of Kāśyapa 1.26.5

1.26.5

tatra bheṣajasaṃpat -- subhūmau jātaṃ kāle coddhṛtaṃ kāle cotpannam avikāri agnitoyajantuviṇmūtrajarādibhiranupahataṃ tattadrogayogyaṃ krameṇa
vidhivadupapāditamiti

Here, excellence of the medicament: grown in good soil, collected at the proper time, produced in the proper season, unaltered, undamaged by fire, water, insects, faeces, urine, aging, and the like, suitable for the specific disease, and prepared methodically in due order.