Valmiki Ramayana 2.49.7
कथम् नाम महाभागा सीता जनकनन्दिनी ।सदा सुखेष्वभिरता दुःखान्यनुभविष्यति॥
katham nāma mahābhāgā sītā janakanandinī |sadā sukheṣvabhiratā duḥkhānyanubhaviṣyati ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book