Bhagavad Gita 7.24
अव्यक्तं व्यक्तिमापन्नं मन्यन्ते मामबुद्धयः। परं भावमजानन्तो ममाव्ययमनुत्तमम्।।7.24।।
avyaktaṃ vyaktimāpannaṃ manyante māmabuddhayaḥ| paraṃ bhāvamajānanto mamāvyayamanuttamam||7.24||
avyaktam vyaktimapannam manyante mamabuddhayah param bhavamajananto mamavyayamanuttamam7.24
Meaning
The unintelligent think Krishna was formless before and has now assumed a form. They do not know His supreme nature, which is imperishable and transcendental.
बुद्धिहीन पुरुष मेरे अनुत्तम अव्यय परम भाव को न जानते हुए मुझ अव्यक्त को व्यक्त मानते हैं।
This is verse 24 of 30 in Chapter 7 (Jnana Vijnana Yoga) of the Bhagavad Gita.