Bhagavad Gita · 5.16

ज्ञानेन तु तदज्ञानं येषां नाशितमात्मनः।तेषामादित्यवज्ज्ञानं प्रकाशयति तत्परम्॥

jñānena tu tad ajñānaṁ yeṣhāṁ nāśhitam ātmanaḥ teṣhām āditya-vaj jñānaṁ prakāśhayati tat param

But for those in whom ignorance of the Self is destroyed by knowledge, that knowledge, like the sun, illuminates the Supreme Truth.

— Bhagavad Gita 5.16

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)