Matsyapurana 126.40

126.40

ityeṣa ekacakreṇa sūryastūrṇaṃ prasarpati
tatra tairakramairaśvaiḥ sarpate 'sau dinakṣaye //

Thus the Sun moves on in His one-wheeled chariot swiftly drawn by His horses and at the end of a day returns to His abode. He always has (tawny) greenish yellow horses yoked to His chariot. He drinks water through thousands of His rays and ceases to draw it when it passes the point of saturation. Then He discharges them again in the form of rain.—39-40.