Brihat Parashara Hora Shastra
कारकांशाद् व्यये केतौ शुभखेटयुतेक्षिते । तदा तु जायते मुक्तिः सायुज्यपदमाप्नुयात् ॥ ६५॥
One will attain full enlightenment, if Ketu is in the 12th identical with Mesh, or Dhanu and receives a Drishti from a benefic.
english translation
kArakAMzAd vyaye ketau zubhakheTayutekSite । tadA tu jAyate muktiH sAyujyapadamApnuyAt ॥ 65॥
hk transliteration by Sanscript