Valmiki Ramayana Yuddha Kanda Sarga 67 Shloka 150
Original Shlokaपश्यमेमुद्गरंभीमंसर्वकालायसंमहत् । अनेननिर्जितादेवादानवाश्चपुरामया ।।6.67.150।।
1 source checked for this shloka
मे I, सर्वकालायसम् made of wrought iron, भीमम् terrible, महत् great, मुद्गरम् club, पश्य see, अनेन by this, पुरा earlier, देवाः Devas, दानवाश्च Danavas, निर्जिताः won.
"See my terrible club made of wrought iron. By this I have won earlier Devatas and Danavas."