Chapter 13 · The Field and the Knower · Krishna said
Bhagavad Gita 13.27 — Union of field and knower
यावत्सञ्जायते किञ्चित्सत्त्वं स्थावरजङ्गमम्। क्षेत्रक्षेत्रज्ञसंयोगात्तद्विद्धि भरतर्षभ ॥
yāvatsañjāyate kiñcitsattvaṃ sthāvarajaṅgamam | kṣetrakṣetrajñasaṃyogāttadviddhi bharatarṣabha ||
Meaning
Whatever comes into being, moving or unmoving, know that it arises from the union of the field and the knower of the field, Arjuna.