Phaladeepika
तुङ्गस्था बलिनोऽखिलाश्च शशिनः श्लाघ्यं हि पक्षोद्भवं भानोर्दिग्बलमाह वक्रगमने तराग्रहाणां बलम् । कर्क्युक्षाजघटालिगोहिरबलान्त्योक्षाश्विपाश्चात्यगः केतुस्तत्परिवेषधन्वसु बली चेन्द्वर्कयोगो निशि ॥ ५॥
All planets are strong when they are in exaltation. The Moon is strong and auspicious when she has her full Paksha bala and the Sun when he has his full Dig-bala (i.e., when he is in the 10 th house or the Meridian). The other five non-luminous planets are strong when they are retrograde. Rahu in Karkataka, Vrishabha, Mesha, Kumbha and Vrischika and Ketu in Meena, Kanya, Vrishabha and the later half of Dhanus, in Parivesha and Indra-chapa are strong if there be a conjunction of the Moon and the Sun and the time be night.
english translation
tuGgasthA balino'khilAzca zazinaH zlAghyaM hi pakSodbhavaM bhAnordigbalamAha vakragamane tarAgrahANAM balam । karkyukSAjaghaTAligohirabalAntyokSAzvipAzcAtyagaH ketustatpariveSadhanvasu balI cendvarkayogo nizi ॥ 5॥
hk transliteration by Sanscript