Valmiki Ramayana Ayodhya Kanda Sarga 58 Shloka 10
Original Shlokaसिद्धार्थः खलु सूत त्वं येन दृष्टौ ममाऽत्मजौ। वनान्तं प्रविशन्तौ तावश्विनाविवमन्दरम्।।2.58.10।।
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सूत O charioteer, येन by you, अश्विनौ Aswinis, मन्दरम् इव like Mandara mountain, वनान्तम् on the outskirts of the forest, प्रविशन्तौ entering, मम my, आत्मजौ sons, दृष्टौ have been seen, त्वम् you, सिद्धार्थः खलु are blessed indeed.
You are blessed indeed, O charioteer to have seen my sons entering the outskirts of the forest like Aswinis stepping into the region of the Mandara mountain.