पानं पानीयं चाउषधेन व्याख्यातम् ॥ कZ_०१.२१.११ ॥
pānaṃ pānīyaṃ ca auṣadhena vyākhyātam ।
Ang mga inumin at inuming-tubig ay dapat isaayos ayon sa kaparehong pamamaraan gaya ng sa gamot (ibig sabihin, may katumbas na mga kontrol sa beripikasyon).
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.