Valmiki Ramayana Yuddha Kanda Sarga 43 Shloka 26

निशितैः sharp, रामस्तु even Rama, क्रुद्धः anguished, घोरैः fierce, अग्निशिखोपमैः like flames of fire, चतुर्भिः all the four, शरैः by arrows, तेषाम् them, चतुर्णाम् four, शिरांसि heads, चिच्छेद shattered.

Raged Rama with his sharp arrows which were like flames of fire destroyed all the four Rakshasas by cutting their heads.