Mahabharata 5.29.48

निर्वनो वध्यते व्याघ्रो निर्व्याघ्रं छिद्यते वनम्तस्माद्व्याघ्रो वनं रक्षेद्वनं व्याघ्रं च पालयेत्

nirvano vadhyate vyāghro nirvyāghraṃ chidyate vanamtasmādvyāghro vanaṃ rakṣedvanaṃ vyāghraṃ ca pālayet

Our plain-language meaning of this verse is waiting for scholar review.