Bhagavad Gita · 8.27

नैते सृती पार्थ जानन्योगी मुह्यति कश्चन।तस्मात्सर्वेषु कालेषु योगयुक्तो भवार्जुन॥

naite sṛtī pārtha jānan yogī muhyati kaśhchana tasmāt sarveṣhu kāleṣhu yoga-yukto bhavārjuna

O son of Pritha, no yogi who knows these two paths is ever deluded. Therefore, O Arjuna, be united in yoga at all times.

— Bhagavad Gita 8.27

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