Chapter 18 · verse 67 · gita.yoga.org

Bhagavad Gita 18.67

इदं ते नातपस्काय नाभक्ताय कदाचन।न चाशुश्रूषवे वाच्यं न च मां योऽभ्यसूयति

Never speak this to one who is devoid of austerities or devotion, who does not render service, who does not desire to listen, or who cavils at Me.