Brihat Parashara Hora Shastra
विलग्नपे बलोपेते शुभदृष्टेंश्शसम्भवभ् । रवौ पिंडोद्भवं ग्राह्यं चन्द्रे नैसर्गिकं तथा ॥ ३१॥
According to which of the three, Lagn, Sūrya, or Candr is stronger than the other two, Ańśayu, Pindayu, or Nisargayu should be, respectively, chosen.
english translation
vilagnape balopete zubhadRSTeMzzasambhavabh । ravau piMDodbhavaM grAhyaM candre naisargikaM tathA ॥ 31॥
hk transliteration by Sanscript