Charak Samhita
दन्तैश्छिन्दन्नखाग्राणि नखैच्छिन्दञ्छिरोरुहान्। काष्ठेन भूमिं विलिखन्न रोगात् परिमुच्यते ॥१८॥
॥ Fatal signs of abnormal behvior pattern॥ The patient, who cuts tips of his nail by biting, clips hair by nail and writes on the ground with the help of a stick, succumbs to the disease.
english translation
dantaizchindannakhAgrANi nakhaicchindaJchiroruhAn। kASThena bhUmiM vilikhanna rogAt parimucyate ॥18॥
hk transliteration by Sanscript