Surya Siddhanta
ऊना विवस्वतः प्राच्याम् अस्तम् चन्द्रज्ञभार्गवाः। व्रजन्त्य् अभ्यधिकाः पस्चाद् उदयम् शीघ्रयायिनः॥
The moon, Mercury and Venus; these three swift-moving planets set in the east when their longtitude is less than that of the sun; if greater than they rise in the west.
english translation
UnA vivasvataH prAcyAm astam candrajJabhArgavAH। vrajanty abhyadhikAH pascAd udayam zIghrayAyinaH॥
hk transliteration by Sanscript