Valmiki Ramayana 4.2.27

शुद्ध आत्मानौ यदि एतौ जानीहि त्वम् प्लवंगम ।व्याभाषितैः वा रूपैः वा विज्ञेया दुष्टता अनयोः॥

śuddha ātmānau yadi etau jānīhi tvam plavaṃgama |vyābhāṣitaiḥ vā rūpaiḥ vā vijñeyā duṣṭatā anayoḥ ||

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