Ramayana
भूत्वाशकुनयस्सर्वेप्रविष्टाश्चरिपोर्भलम् । विधानंविहितंयच्चतद्धृष्टवासमुपस्थिताः ॥ ६-३७-८
''All of them assumed the form of birds and went deep into Lanka, saw the enemy strength and arrangements made by the enemy and turned up. ॥ 6-37-8॥
english translation
bhUtvAzakunayassarvepraviSTAzcariporbhalam । vidhAnaMvihitaMyaccataddhRSTavAsamupasthitAH ॥ 6-37-8
hk transliteration by Sanscript