Brihat Jataka
सप्ताहतं त्रिघनभाजितशेषमृक्षं दत्वाथवा नवविशोध्य न वाथवाऽस्मात् ॥ एवं कलत्रसहजात्मजशत्रुभेभ्य: प्रष्टुर्वदेदुदयराशिवशेन तेषाम् ॥ २६-१० ॥
Multiplied by seven having added 9, subtracted 9, or not at all, the nakshatra is the remainder from that divided by 27. Thus from this the zodiac signs of the wife, brother, son, and enemy of the querent one should declare with the origin of the rising zodiac of those.
english translation
saptAhataM trighanabhAjitazeSamRkSaM datvAthavA navavizodhya na vAthavA'smAt ॥ evaM kalatrasahajAtmajazatrubhebhya: praSTurvadedudayarAzivazena teSAm ॥ 26-10 ॥
hk transliteration by Sanscript