Brihat Parashara Hora Shastra
ग्रहसाम्ये च विज्ञेयो योगः केमद्रुमोऽशुभः । दशाप्रारम्भसमये सलग्नान् साधयेद् ग्रहान् ॥ ९७॥
Kemadrum Yog will operate additionally, if there are malefics in the 2nd and 8th from the Rāśi, whose Dasha will be in currency.
english translation
grahasAmye ca vijJeyo yogaH kemadrumo'zubhaH । dazAprArambhasamaye salagnAn sAdhayed grahAn ॥ 97॥
hk transliteration by Sanscript