Valmiki Ramayana Yuddha Kanda Sarga 70 Shloka 38
Original Shlokaअथशक्तिंसमादायकाळरात्रिमिवान्तकः । चिक्षेपानिलपुत्रायत्रिशिरारावणात्मजः ।।6.70.38।।
1 source checked for this shloka
तथ in the same way, रावणात्मजः Ravana's son, त्रिशिराः Trisira, अन्तकः Death, काळरात्रिम् इव like Kalaratri (Kaala, the deity presiding over the night of dissolution) शक्तिम् javelin, समादाय seizing, अनिलपुत्राय at the son of wind god, चिक्षेप shattered.
In the same manner, Trisira, the son of Ravana sprung up and seized a javelin, just as God of death in dark night and hurled at the son of wind god and shattered.