Brihat Parashara Hora Shastra
दशां शुभप्रदां प्राहुर्विद्वांसो दैवचिन्तकाः । लग्नेशो धर्मभावस्थो धर्मेशो लग्नगो यदि ॥ १६॥
If Dharm‟s Lord is in Lagn and Lagn‟s Lord is in Dharm, the Dashas of both of them will produce extremely beneficial results.
english translation
dazAM zubhapradAM prAhurvidvAMso daivacintakAH । lagnezo dharmabhAvastho dharmezo lagnago yadi ॥ 16॥
hk transliteration by Sanscript