Mahabharata 5.91.12
तत्समर्थं शुभं वाक्यं धर्मार्थसहितं हितम्धार्तराष्ट्रः सहामात्यो ग्रहीतुं विदुरार्हति
tatsamarthaṃ śubhaṃ vākyaṃ dharmārthasahitaṃ hitamdhārtarāṣṭraḥ sahāmātyo grahītuṃ vidurārhati
Our plain-language meaning of this verse is waiting for scholar review.