Bhagavad Gita 18.67 Chapter 18, Verse 67

इदं ते नातपस्काय नाभक्ताय कदाचन ।
न चाशुश्रूषवे वाच्यं न च मां योऽभ्यसूयति ॥१८.६७॥

idaṃ te nātapaskāya nābhaktāya kadācana
na cāśuśrūṣave vācyaṃ na ca māṃ yo'bhyasūyati

Meaning

This should never be spoken to one who lacks discipline or devotion, who does not wish to listen, or who speaks ill of me.

Newly written by Bhajan Dhun — scholarly review in progress.

Reference: Bhagavad Gita 18.67 (Chapter 18, Liberation through Renunciation (Moksha Sannyasa Yoga), Verse 67)