Phaladeepika
स्वोच्चे सुहृत्क्षेत्रगतो ग्रहेन्द्रः षड्भिर्बलैर्मुख्यबलान्वितोऽपि । सन्धौ स्थितः सन्नफलप्रदः स्यत् एवं विचिन्त्यात्र वदेद्विपाके ॥ १३॥
A planet may be in his exaltation or may occupy a friendly house and may be endowed with the 6 kinds of strength. Notwithstanding all this, if he should happen to be in a Bhavasandhi, he becomes ineffective. This should first be noted before predicting. the effects of the Dasas and Bhuktis of planets.
english translation
svocce suhRtkSetragato grahendraH SaDbhirbalairmukhyabalAnvito'pi । sandhau sthitaH sannaphalapradaH syat evaM vicintyAtra vadedvipAke ॥ 13॥
hk transliteration by Sanscript