Valmiki Ramayana Yuddha Kanda Sarga 29 Shloka 22
Original Shlokaचारेणविदितश्शत्रुःपण्डितैर्वसुधाधिपैः । युद्धेस्वल्पेनयत्नेनसमासाद्यनिरस्यते ।।6.29.22।।
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पण्डितै wise, वसुधाधिपै kings of the land, चारेण from the spies, विदित knowing, शत्रु enemies, युद्धे in war, समासाद्य having known, स्वल्पेन little, यत्नेन effort, निरस्यते destroy.
"Wise kings of the land, having known about enemies from the spies destroy enemies in war with little effort."