Valmiki Ramayana 5.40.1

श्रुत्वा तु वचनं तस्य वायुसूनोर्महात्मनः ।उवाचात्महितं वाक्यं सीता सुरसुतोपमा॥

śrutvā tu vacanaṃ tasya vāyusūnormahātmanaḥ |uvācātmahitaṃ vākyaṃ sītā surasutopamā ||

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