Valmiki Ramayana Yuddha Kanda Sarga 77 Shloka 11

परिघोपमबाहः arms like iron bars, बली mighty, भास्करप्रभाम् shining like Sun, परिघम् iron club, बलवतः mighty, तस्य his, वक्षसि on the breast, पातयामासthrew

The Rakshasa, whose arms were like iron bars and shining like the Sun brought it down on the breast of mighty Hanuman.