Valmiki Ramayana Ayodhya Kanda Sarga 7 Shloka 20
Original Shlokaअक्षय्यं सुमहद्देवि प्रवृत्तं त्वद्विनाशनम्। रामं दशरथो राजा यौवराज्येऽभिषेक्ष्यति।।2.7.20।।
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देवि O queen, अक्षय्यम् unending, सुमहत् immense, त्वद्विनाशनम् your ruin, प्रवृत्तम् is in the offing, राजा दशरथ: king Dasaratha, रामम् of Rama, यौवराज्ये as heirapparent, अभिषेक्ष्यति is crowning.
O queen, your end is approaching, and it has no end and it is overwhelming. King Dasaratha is crowning Rama as heirapparent.