Valmiki Ramayana 6.8.8

6.8.8

asmin muhūrte hatvaiko nivartiṣyāmi vānarān
praviṣṭān sāgaraṃ bhīmam ambaraṃ vā rasātalam

Then Durmukh cried, of Rákshas race:
'Too long we brook the dire disgrace.
He gave our city to the flames,
He trod the chambers of thy dames.
Ne'er shall so weak and vile a thing
Unpunished brave the giants' king.
Now shall this single arm attack
And drive the daring Vánars back,
Till to the winds of heaven they flee,
Or seek the depths of earth and sea.'