Chapter 13 · verse 4 · gita.yoga.org
Bhagavad Gita 13.4
तत्क्षेत्रं यच्च यादृक् च यद्विकारि यतश्च यत्।स च यो यत्प्रभावश्च तत्समासेन मे शृणु
Hear from Me in brief what the field is, of what nature it is, what its modifications are, whence it is, who He is, and what His powers are.