Valmiki Ramayana 7.10.48
कुम्भकर्णस्तु दुष्टात्मा चिन्तयामास दुःखितः ।ईदृशं किमिदं वाक्यं ममाद्य वदनाच्च्युतम्॥
kumbhakarṇastu duṣṭātmā cintayāmāsa duḥkhitaḥ |īdṛśaṃ kimidaṃ vākyaṃ mamādya vadanāccyutam ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book