Shiva Purana
द्विविधा तेजसो वृत्तिसूर्यात्मा चानलात्मिका ॥ तथैव रसवृत्तिश्च सोमात्मा च जलात्मिका ॥ ५ ॥
Tejas functions in two ways, in the form of the sun and of fire. Rasa too functions in the form of the moon and of water.
english translation
dvividhA tejaso vRttisUryAtmA cAnalAtmikA ॥ tathaiva rasavRttizca somAtmA ca jalAtmikA ॥ 5 ॥
hk transliteration by Sanscript