Arthashastra
अनवगाहमानास् तोयम् अपिबन्तश् च अन्तर् अवक्षाराच् च अन्धी भवन्ति ॥
and when they have no water for bathing and drinking, they lose their quickness and become obstinate.
english translation
anavagAhamAnAs toyam apibantaz ca antar avakSArAc ca andhI bhavanti ॥
hk transliteration by Sanscript