यदा वै विजानात्यथ सत्यं वदति ना-विजानन्सत्यं वदति विजानन्नेव सत्यंवदति विज्ञानं त्वेव विजिज्ञासितव्यमि-ति विज्ञानं भगवो विजिज्ञास इति ॥ १ ॥
In plain words
When a person truly realizes the truth, then he speaks it; one who does not know cannot speak the truth. Only one who has direct realization speaks the truth. Therefore, distinct realization itself must be sought above all. 'Distinct realization, O venerable sir, I desire to know.'
Close to the Sanskrit
When indeed one knows distinctly, then he speaks the truth. One not knowing distinctly does not speak the truth. Only knowing distinctly does one speak the truth. Distinct knowledge indeed is to be specifically inquired into. 'Distinct knowledge, O Venerable One, I desire to inquire into.'