Bhagavad Gita 18.72

कच्चिदेतच्छ्रुतं पार्थ त्वयकाग्रेण चेतसा |
कच्चिदज्ञानसम्मोहः प्रणस्तास्ते धनञ्जय

Translation

O Arjun, have you heard Me with a concentrated mind? Have your ignorance and delusion been destroyed?