Valmiki Ramayana Yuddha Kanda Sarga 92 Shloka 6
Original Shlokaरावणेस्तुशिरश्छिन्नंलक्ष्मणेनमहात्मना । न्यवेदयतरामायतदाहृष्टोविभीषणः ।।6.92.6।।
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तदा then, विभीषणः Vibheeshana, हृष्टः happy, महात्मना great self, लक्ष्मणेन by Lakshmana, रावणेः Ravana, शिरः head, छिन्नम् severed, रामाय to Rama, न्यवेदयत informed
Then Vibheeshana gladly informed Rama that Ravana's son's head had been severed by great Lakshmana.