Valmiki Ramayana Yuddha Kanda Sarga 59 Shloka 61
Original Shlokaसतलाभिहतस्तेनचचालचमुहुर्मुहुः । स्थित्वामुहूर्तंतेजस्वीस्थैर्यंकृत्वामहामतिः ।।6.59.61।। आजघानाभिसङ्कृद्धस्तलेनैवामरद्विषम् ।
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तेन by him, तलाभिहतः smacked by, सः he (Hanuman), मुहुर्मुहुः again and again, चचालच with hand, तेजस्वी brilliant, महामतिः intellectual, मुहूर्तम् for a minute, स्थित्वा stood firm, स्थैर्यम् picking up courage, अभि very, कृत्वा did, सङ्कृद्धः enraged, तलेनैव with his palm, अमरद्विषम् enemy of gods, आजघान struck.
Smacked by him (Ravana), Hanuman, a brilliant and intelligent one stood firm for a while and picking up courage, highly enraged struck the enemy of gods with his palm.