Valmiki Ramayana Yuddha Kanda Sarga 76 Shloka 88
Original Shlokaत्दावेगेनतत्रासीत्तेजःप्रज्वलितंमहत् । वज्रनिष्पेषसञ्जाताज्वालामेरोर्यथागिरेः ।।6.76.88।।
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तदा then, तत्र there, वेगेन speedily, महत् great, तेजः flame, मेरोःगिरेः Meru mountain, वज्रनिष्पेषसञ्जाता force of the fist like thunderbolt, ज्वालायथा like flame, प्रज्वलितम् burst forth.
Then by the speed of the hit on Sugriva's chest by Kumbha's fist a flame burst forth like the flame of Meru Mountain.