Valmiki Ramayana Ayodhya Kanda Sarga 52 Shloka 97
Original Shlokaन हि तावदतिक्रान्ता सुकरा काचन क्रिया। अद्य दुःखं तु वैदेही वनवासस्य वेत्स्यति।।2.52.97।।
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अतिक्रान्ता a thing of the past, काचन क्रिया any task, सुकरा difficult, न हि तावत् not possible, अद्य now, वैदेही Sita, वनवासस्य life in the forest, दुःखम् difficulties, वेत्स्यति will come to know.
We have not yet confronted any hardship. From now on Sita will come to know the difficulties of forest life.