Mahabharata 1.183.6

अजातशत्रुश्च कुरुप्रवीरः; पप्रच्छ कृष्णं कुशलं निवेद्यकथं वयं वासुदेव त्वयेह; गूढा वसन्तो विदिताः स्म सर्वे

ajātaśatruśca kurupravīraḥ; papraccha kṛṣṇaṃ kuśalaṃ nivedyakathaṃ vayaṃ vāsudeva tvayeha; gūḍhā vasanto viditāḥ sma sarve

Our plain-language meaning of this verse is waiting for scholar review.