Brihat Parashara Hora Shastra
अथातः सम्प्रवक्ष्यामि वर्गविंशोपकं बलम्। यस्य विज्ञानमार्तेण विपाकं दृष्टिगोचरम्॥ १०॥
I explain below the method of knowing the Vimsopak strength (20 point strength), just by knowing which an idea of the results of actions of this birth and of former birth will clearly emerge.
english translation
athAtaH sampravakSyAmi vargaviMzopakaM balam। yasya vijJAnamArteNa vipAkaM dRSTigocaram॥ 10॥
hk transliteration by Sanscript