Charak Samhita
विरुद्धदुष्टाशुचिभोजनानि प्रधर्षणं देवगुरुद्विजानाम्। उन्मादहेतुर्भयहर्षपूर्वो मनोऽभिघातो विषमाश्च चेष्टाः ॥४॥
॥ Causes of unmada॥ Food with incompatible, contaminated and unclean properties; possession by spirits like gods, teachers and brahmanas; mental trauma due to recurrent exposure to fear or exhilaration and adopting difficult posture are the general causes of unmada.
english translation
viruddhaduSTAzucibhojanAni pradharSaNaM devagurudvijAnAm। unmAdaheturbhayaharSapUrvo mano'bhighAto viSamAzca ceSTAH ॥4॥
hk transliteration by Sanscript