Arthashastra
नाष्टिकश् च स्व करणं कृत्वा नष्ट प्रत्याहृतं लभेत ॥
After proving his claim to a lost property (svakaranam kritva), its owner shall be entitled to take possession of it.
english translation
nASTikaz ca sva karaNaM kRtvA naSTa pratyAhRtaM labheta ॥
hk transliteration by Sanscript