Valmiki Ramayana Yuddha Kanda Sarga 17 Shloka 51

बृहस्पतिरपि: even Brihaspati, बृवन् proclaim, मतिश्रेष्ठम् highly intelligent, समर्थम् exceptionally capable, वदताम् in eloquence, वरम् foremost, भवन्तम् you, अतिशाययितुम् excellent, नशक्तः not possible.

"Even for Brihaspati who is proclaimed to be highly intelligent, it is not possible to surpass you as you are the foremost in capability and eloquence."