Bhagavad Gita · 14.8

तमस्त्वज्ञानजं विद्धि मोहनं सर्वदेहिनाम्।प्रमादालस्यनिद्राभिस्तन्निबध्नाति भारत॥

tamas tv ajñāna-jaṁ viddhi mohanaṁ sarva-dehinām pramāda-ālasya-nidrābhis tan nibadhnāti bhārata

Know that tamas, born of ignorance, is the deluder of all embodied beings. It binds the soul through negligence, laziness, and excessive sleep, O Arjuna.

— Bhagavad Gita 14.8

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)