Charak Samhita
नद्यस्तडागाः पद्मिन्यो ह्रदाश्च विमलोदकाः। अवगाहे हिता दाहतृष्णाग्लानिज्वरापहाः ॥२६४॥
He should take bath in rivers, ponds, ponds having lotus plant and lakes having clean water. This bath alleviates burning sensation, morbid thirst, glāni and jwara.
english translation
nadyastaDAgAH padminyo hradAzca vimalodakAH। avagAhe hitA dAhatRSNAglAnijvarApahAH ॥264॥
hk transliteration by Sanscript