Bhagavad Gita 9.15
ज्ञानयज्ञेन चाप्यन्ये यजन्तो मामुपासते। एकत्वेन पृथक्त्वेन बहुधा विश्वतोमुखम्।।9.15।।
jñānayajñena cāpyanye yajanto māmupāsate| ekatvena pṛthaktvena bahudhā viśvatomukham||9.15||
jnanayajnena capyanye yajanto mamupasate ekatvena prithaktvena bahudha vishvatomukham9.15
Meaning
Others worship the Supreme through the sacrifice of knowledge — seeing Him as the One, as the Many, or as the Universal Form — in manifold ways, with faces everywhere.
कोई मुझे ज्ञानयज्ञ के द्वारा पूजन करते हुए एकत्वभाव से उपासते हैं, कोई पृथक भाव से, कोई बहुत प्रकार से मुझ विराट स्वरूप को उपासते हैं।
This is verse 15 of 34 in Chapter 9 (Raja Vidya Raja Guhya Yoga) of the Bhagavad Gita.