Ramayana
प्रविष्टश्शत्रुसैन्यंहिप्राप्तश्शत्रुरतर्कितः । निहन्यादन्तरंलब्ध्वाउलूकवायसानिव ॥ ६-१७-२८
"One who entered the enemy's camp and had access to come inside kills the enemies. It is like an owl killing many crows having entered the hole. [6-17-28]
english translation
praviSTazzatrusainyaMhiprAptazzatruratarkitaH । nihanyAdantaraMlabdhvAulUkavAyasAniva ॥ 6-17-28
hk transliteration by Sanscript