Valmiki Ramayana Kishkindha Kanda Sarga 11 Shloka 52
Original Shlokaस तु विज्ञाय तपसा वानरेण कृतं हि तत्। उत्ससर्ज महाशापं क्षेप्तारं वालिनं प्रति4.11.52।।
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सः he, तत् that, वानरेण by the monkey, कृतम् done, तपसा by ascetic vision, विज्ञाय having known, क्षेप्तारम् who hurled, वालिनं प्रति at that Vali, महाशापम् great curse, उत्ससर्ज pronounced.
'Having known through his ascetic vision that it was the act of a monkey, he pronounced a curse on Vali who had hurled (the body):