Surya Siddhanta
मत्स्यद्वयान्तरयुतेस् त्रिस्पृक्सूत्रेण भाभ्रमः। त्रिभद्युकर्णार्धगुणाः स्वाहोरात्रार्धभाजिताः॥
english translation
(In order to find the right ascensions of the ends of the three first signs of the ecliptic i. e. Aries, Taurus and Gemini, find the declinations of the said ends) then multiply the sines of one, two, and three sines by the cosine of the greatest declination of the Sun separately, and divide the products by the cosines of the declinations (above found), respectively: The quotients will be the sines of the arcs; find the arcs in minutes. (These arcs will be the right ascensions of the ends of the three first signs of the ecliptic).
hindi translation
matsyadvayAntarayutes trispRksUtreNa bhAbhramaH। tribhadyukarNArdhaguNAH svAhorAtrArdhabhAjitAH॥
hk transliteration by Sanscript