Valmiki Ramayana 6.111.28
राघवस्तवसंयुक्ता गगने ऽपि च शुश्रुवे ।साधु साध्विति वागग्र्या दैवतानां महात्मनाम्॥
rāghavastavasaṃyuktā gagane 'pi ca śuśruve |sādhu sādhviti vāgagryā daivatānāṃ mahātmanām ||
Our plain-language meaning of this verse is waiting for scholar review.