Valmiki Ramayana Aranya Kanda Sarga 31 Shloka 30
Original Shlokaनैव देवी न गन्धर्वी नाप्सरा नापि दानवी। तुल्या सीमन्तिनी तस्या मानुषीषु कुतो भवेत्।।3.31.30।।
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तस्याः for her, तुल्या equal, सीमन्तिनी woman, देवी a goddess, नैव not there, गन्धर्वी gandharvi, न not, अप्सराः apsara, न not, दानवी अपि among demonesses, न not there, मानुषीषु among humans, कुतः how can, भवेत् she be.
She has no equal among goddesses nor among gandharvis nor apasaras nor among demonesses. How can there be a peer of her among human beings ?