Bhagavad Gita 10.2
न मे विदुः सुरगणाः प्रभवं न महर्षयः। अहमादिर्हि देवानां महर्षीणां च सर्वशः।।10.2।।
na me viduḥ suragaṇāḥ prabhavaṃ na maharṣayaḥ| ahamādirhi devānāṃ maharṣīṇāṃ ca sarvaśaḥ||10.2||
na me viduh suraganah prabhavam na maharshayah ahamadirhi devanam maharshinam ca sarvashah10.2
Meaning
Neither the hosts of celestial beings nor the great sages know Krishna's origin, for He is the source of all the gods and sages. God precedes all other beings.
न तो देवतागण और न महर्षिगण ही मेरी उत्पत्ति (प्रभव) को जानते हैं; क्योंकि मैं सब प्रकार से देवताओं का तथा महर्षियों का भी आदिकारण हूँ।
This is verse 2 of 42 in Chapter 10 (Vibhooti Yoga) of the Bhagavad Gita.