Charak Samhita
तृष्यते तिक्तकैः सिद्धं तृष्णाघ्नं वा फलोदकम्। सिद्धं विदारिगन्धाद्यैरथवाशृतशीतलम् ॥५१॥
5. vartaka and krakara cooked in decoction of bilwa, utpala etc. In the condition of thirst, water boiled with bitter or thirst-alleviating fruit-juice, or water boiled with the drugs of the vidarigandhadi group or simply water boiled and cooled is prescribed.
english translation
tRSyate tiktakaiH siddhaM tRSNAghnaM vA phalodakam। siddhaM vidArigandhAdyairathavAzRtazItalam ॥51॥
hk transliteration by Sanscript