Jñāneśvarī (commentary on the Bhagavadgītā) 4.199

4.199

maga saṃśayī jarī paḍalā |
tarī nibhrāṃta jāṇeṃ nāsalā |
to aihikaparatrā mukalā |
sukhāsi gā ||

And if he has fallen into doubt, / then know for certain that he is ruined; / he has lost the happiness / of both this world and the next, O friend!