Valmiki Ramayana Yuddha Kanda Sarga 12 Shloka 29
Original Shlokaसर्वमेतन्महाराजकृतमप्रतिमंतव । विधीयेतसहास्माभिरादावेवास्यकर्मणः ।।6.12.29।।
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महाराज: great king, अस्य: about, कर्मण: the action, आदावेव: earlier, एतत् this, सर्वम् all, कृतम् done, तव: your, अस्माभिःसह: along with us, विधीयेतयदि: if you had, अप्रतिमम् it would have been very good.
"Great king If you had discussed with us about all this action earlier, it would have been very good."