Mahabharata 12.218.18
शक्र उवाच · śakra uvāca
तिष्ठेथा मयि नित्यं त्वं यथा तद्ब्रूहि मे शुभेतत्करिष्यामि ते वाक्यमृतं त्वं वक्तुमर्हसि
tiṣṭhethā mayi nityaṃ tvaṃ yathā tadbrūhi me śubhetatkariṣyāmi te vākyamṛtaṃ tvaṃ vaktumarhasi
Our plain-language meaning of this verse is waiting for scholar review.