Valmiki Ramayana Yuddha Kanda Sarga 13 Shloka 3
Original Shlokaईश्वरस्येश्वरःकोऽस्तितवशत्रुनिबर्हण: । रमस्वसहवैदेह्याशत्रूनाक्रम्यमूर्धसु ।।6.13.3।।
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शत्रुनिबर्हण: destroyer of foes, ईश्वरस्य: to Lord, ईश्वरः Lord, कः who, अस्ति: so be it, शत्रून् enemy, मूर्धसु: on the head, आक्रम्य: setting your feet, वैदेह्या: Vaidehi, सह: with, रमस्व: you may sport.
"O Destroyer of foes Who is there to question Lord since you are Lord? Setting your foot on the head of enemy you may sport with Sita."