The Compendium of Caraka 2.1.37

2.1.37

jīrṇajvareṣu tu sarveṣveva sarpiṣaḥ pānaṃ praśasyate yathāsvauṣadhasiddhasya; sarpirhi snehādvātaṃ śamayati, saṃskārāt kaphaṃ, śaityāt pittamūṣmāṇaṃ ca; tasmājjīrṇajvareṣu sarveṣveva sarpirhitamudakamivāgnipluṣṭeṣu dravyeṣviti//

In all chronic fevers, however, the drinking of clarified butter prepared with appropriate drugs is praised; for clarified butter pacifies vāta due to unctuousness, kapha due to processing, and pitta and bodily heat due to coolness; therefore, in all chronic fevers, clarified butter is beneficial like water on things scorched by fire.