SubhashitamAnushtubh
दुर्जनः प्रियवादीति नैतद् विश्वासकारणम् । मधु तिष्ठति जिह्वाग्रे हृदये तु हलाहलम् ॥
मधुhoney
जिह्वाग्रेon the tip of tongue
हलाहलम्deadly poison
Never trust a wicked person even if speaking sweetly; there may be honey on his tongue but poison in his heart.
wickeddeceptioncaution