Valmiki Ramayana Sundara Kanda Sarga 1 Shloka 39
Original Shlokaयथा राघवनिर्मुक्तः शरः श्वसनविक्रमः। गच्छेत्तद्वद्गमिष्यामि लङ्कां रावणपालिताम्।।5.1.39।।
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राघवनिर्मुक्तः released by Raghava, शरः arrow, यथा similar manner, गच्छेत् goes, तद्वत् like that, श्वसनविक्रमः with the speed of wind, रावणपालिताम् governed by Ravana, लङ्काम् Lanka, गमिष्यामि I will reach.
"Just like an arrow released by Raghava would fly, I too will proceed with the speed of the wind to reach Lanka ruled by Ravana.