Brihat Samhita
वियति चरतां ग्रहाणां उपर्युपर्यात्ममार्गसंस्थानाम् । अतिदूराद्दृग्विषये समतां इव सम्प्रयातानाम् ॥ १७-०२ ॥
The planets all revolve in the sky and their orbits of motion lie one above the other. When seen from this great distance, the planets seem to move on one even surface.
english translation
viyati caratAM grahANAM uparyuparyAtmamArgasaMsthAnAm । atidUrAddRgviSaye samatAM iva samprayAtAnAm ॥ 17-02 ॥
hk transliteration by Sanscript