Valmiki Ramayana 2.91.7

राज्ञा च भगवन् नित्यं राजपुत्रेण वा सदा ।यत्नत: परिहर्त्तव्या विषयेषु तपस्विन:॥

rājñā ca bhagavan nityaṃ rājaputreṇa vā sadā |yatnata: pariharttavyā viṣayeṣu tapasvina: ||

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