Valmiki Ramayana 5.59.18

पितामहवरोत्सेकात् परमं दर्पमास्थितौ ।अमृतप्राशिनावेतौ सर्ववानरसत्तमौ॥

pitāmahavarotsekāt paramaṃ darpamāsthitau |amṛtaprāśināvetau sarvavānarasattamau ||

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