Phaladeepika
वदेत्प्रत्यरिनक्षत्रनाथाच्च यमकण्टकम् । त्यक्त्वा तद्भवने कोणे गुरौ पुत्रविनाशनम् ॥ ८॥
Subtract the figures of Yamakantaka from those of the planet ruling the 5 th star reckoned from the natal one. When Jupiter transits the house indicated by the result or its Trikona position, the son's death may be expected,
english translation
vadetpratyarinakSatranAthAcca yamakaNTakam । tyaktvA tadbhavane koNe gurau putravinAzanam ॥ 8॥
hk transliteration by Sanscript