Bhagavad Gita · 4.42

तस्मादज्ञानसम्भूतं हृत्स्थं ज्ञानासिनात्मनः।छित्त्वैनं संशयं योगमातिष्ठोत्तिष्ठ भारत॥

tasmād ajñāna-sambhūtaṁ hṛit-sthaṁ jñānāsinātmanaḥ chittvainaṁ saṁśhayaṁ yogam ātiṣhṭhottiṣhṭha bhārata

Therefore, with the sword of knowledge, cut asunder this doubt born of ignorance that dwells in your heart. Take refuge in yoga, and arise, O Bharata!

— Bhagavad Gita 4.42

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