The Compendium of Caraka 6.22.25

6.22.25

apāṃ kṣayāddhi tṛṣṇā saṃśoṣya naraṃ praṇāśayedāśu/
tasmādaindraṃ toyaṃ samadhu pibettadguṇaṃ vā 'anyat//

For thirst, having dried up a person through the depletion of water, would quickly destroy him; / therefore, he should drink rainwater with honey, or other [water] endowed with its qualities.