Valmiki Ramayana Aranya Kanda Sarga 69 Shloka 25
Original Shlokaसंवेष्टितमिवात्यर्थं गगनं मातरिश्वना। वनस्य तस्य शब्दोऽभूद्दिवमापूरयन्निव।।3.69.25।।
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गगनम् sky, अत्यर्थम् very much, मातरिश्वना by fierce wind, संवेष्टितमिव was as if covered, तस्य of that, वनस्य of the forest, शब्दः sound, दिवम् sky, आपूरयन्निव was filling, अभूत् rose.
It appeared as though a fierce wind rose from the forest and filled the sky.