पानं पानीयं चाउषधेन व्याख्यातम् ॥ कZ_०१.२१.११ ॥
pānaṃ pānīyaṃ ca auṣadhena vyākhyātam ।
飲料および飲用水は、薬と同一の手続(すなわち同等の検証・管理)によって規制されるべきである。
Extension by analogy: once a strict control is defined for medicine, the same control is applied to beverages and water without restating the full procedure.
Because both are direct ingestion vectors; water is a high-frequency, low-suspicion channel for poisoning.