Chapter 13 · verse 2 · gita.yoga.org

Bhagavad Gita 13.2

श्री भगवानुवाच इदं शरीरं कौन्तेय क्षेत्रमित्यभिधीयते।एतद्यो वेत्ति तं प्राहुः क्षेत्रज्ञ इति तद्विदः

The Blessed Lord said, "O Arjuna, this body is called the field; he who knows it is called the knower of the field by those who know them."