Brihat Parashara Hora Shastra
अष्टवर्गफलं चैवं स्थाने च करणेऽन्यथा । राशिद्वयगते भावे तद्राश्यधिपतेः क्रिया ॥ १८॥
In Ashtak Varg add Bindus (auspicious points) and deduct Karanas (inauspicious points). If a Bhava extends to two Rāśis, the rectification will be done, as per both the Lords.
english translation
aSTavargaphalaM caivaM sthAne ca karaNe'nyathA । rAzidvayagate bhAve tadrAzyadhipateH kriyA ॥ 18॥
hk transliteration by Sanscript