Valmiki Ramayana Bala Kanda Sarga 34 Shloka 9
Original Shlokaदिव्या पुण्योदका रम्या हिमवन्तमुपाश्रिता। लोकस्य हितकामार्थं प्रवृत्ता भगिनी मम।।1.34.9।।
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लोकस्य for the world, हितकामार्थम् for the welfare and pleasure, प्रवृत्ता flowed, दिव्या divine, पुण्योदका sacred waters, रम्या beautiful, मम my, भगिनी sister, हिमवन्तम् Himavat mountain, उपाश्रिता took asylum.
Conferring the benefit of the other world and worldly pleasures on men my sister Kausiki who is divine and beautiful having sacred waters took resort in Himavat mountain and started flowing from there.