Bhagavad-gītā 18.31
BG 18.31
Open the full passageयया धर्ममधर्मं च कार्यं चाकार्यमेव च । अयथावत्प्रजानाति बुद्धिः सा पार्थ राजसी ॥३१॥
Sanskrit
yayā dharmam adharmaṁ ca kāryaṁ cākāryam eva ca ayathāvat prajānāti buddhiḥ sā pārtha rājasī
Translation
O son of Pṛthā, that understanding which cannot distinguish between religion and irreligion, between action that should be done and action that should not be done, is in the mode of passion.