Verse
क्षेत्रज्ञं चापि मां विद्धि सर्वक्षेत्रेषु भारत ।क्षेत्रक्षेत्रज्ञयोर्ज्ञानं यत्तज्ज्ञानं मतं मम ॥
Understand Me as the Knower of the Field in all Fields, O Bharata; it is the knowledge at once of the Field and its Knower which is the real illumination and only wisdom.
Gītā 13·3