Bhagwad Gita
Chapter 14, Verse 8
तमस्त्वज्ञानजं विद्धि मोहनं सर्वदेहिनाम्।प्रमादालस्यनिद्राभिस्तन्निबध्नाति भारत।।14.8।।
O son of Bharata, the mode of ignorance causes the delusion of all living entities. The result of this mode is madness, indolence and sleep, which bind the conditioned soul.