Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 15
Sanskrit:
यदा जयेद् रज: सत्त्वं तमो मूढं लयं जडम् ।युज्येत शोकमोहाभ्यां निद्रयाहिंसयाशया ॥ १५ ॥
ITRANS:
yadā jayed rajaḥ sattvaṁtamo mūḍhaṁ layaṁ jaḍamyujyeta śoka-mohābhyāṁnidrayā hiṁsayāśayā
Translation:
When the mode of ignorance conquers passion and goodness, it covers one’s consciousness and makes one foolish and dull. Falling into lamentation and illusion, a person in the mode of ignorance sleeps excessively, indulges in false hopes, and displays violence toward others.