इदं शरीरं कौन्तेय क्षेत्रमित्यभिधीयते |
एतद्यो वेत्ति तं प्राहु: क्षेत्रज्ञ इति तद्विद: || 2||
idaṁ śharīraṁ kaunteya kṣhetram ity abhidhīyate
etad yo vetti taṁ prāhuḥ kṣhetra-jña iti tad-vidaḥ
BG 13.2: The Supreme Divine Lord said: O Arjun, this body is termed as kṣhetra (the field of activities), and the one who knows this body is called kṣhetrajña (the knower of the field) by the sages who discern the truth about both.