Valmiki Ramayana Aranya Kanda Sarga 49 Shloka 10

सः that, रावणः Ravana, असितकेशान्ताम् a lady with shining black hair, भास्करस्य the Sun's, प्रभामिव like the radiance, वसनाभरणोपेताम् robed in the best of clothes and ornaments, मैथिलीम् to SIta, अब्रवीत् said.

Ravana said to the princess from Mithila, whose black hair was shining, who was luminous like the Sun and was clad in the best of clothes and ornaments.