Brihat Parashara Hora Shastra
द्विराश्यधिपक्षेटस्य गण्येदुभयावधि । उभयोर्धिक संख्या कारकस्य दशा समाः ॥ १७७॥
If a Grah owns two Rāśis, the Dasha years will be equal to the number, which is greater, when counted from the Rāśi, occupied by him.
english translation
dvirAzyadhipakSeTasya gaNyedubhayAvadhi । ubhayordhika saMkhyA kArakasya dazA samAH ॥ 177॥
hk transliteration by Sanscript