Valmiki Ramayana 2.3.31

पितुः समीपं गच्छन्तं प्राञ्जलिः पृष्ठतोऽन्वगात् ।स तं कैलासशृङ्गाभं प्रासादं नरपुङ्गवः॥

pituḥ samīpaṃ gacchantaṃ prāñjaliḥ pṛṣṭhato'nvagāt |sa taṃ kailāsaśṛṅgābhaṃ prāsādaṃ narapuṅgavaḥ ||

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