Valmiki Ramayana Yuddha Kanda Sarga 111 Shloka 1
Original Shlokaअथसंस्मारयामासमातलिराघवंतदा । अजानन्निवकिंवीरत्वमेनमनुवर्तसे ।।6.111.1।।
1 source checked for this shloka
अथ and तदा then, मातलिः Matali, राघवम् to Raghava, संस्मारयामास reminded, वीर hero, अजानन्निव as if you don't know, त्वम् you, एनम् in that way, किम् why, अनुवर्तसे are you doing
Matali reminded Rama in this way," O heroic Rama, why are you doing this way, as if you do not know?" Rama uses Brahmastra and kills Ravana. The terror of all worlds killed. Charanas and Devas were filled with joy.