Ramayana
भवन्तौवानरंसैन्यंप्रविश्यानुपलक्षितौ । परिमाणंचवीर्यंचयेचमुख्याःप्लवङ्घमाः ॥ ६-२५-४
"Both of you enter Vanara's army without their knowledge and know about the size of the army, their prowess, as to which monkeys are important among them - ॥ 6-25-4॥
english translation
bhavantauvAnaraMsainyaMpravizyAnupalakSitau । parimANaMcavIryaMcayecamukhyAHplavaGghamAH ॥ 6-25-4
hk transliteration by Sanscript