Bhagavad Gita · 14.9

सत्त्वं सुखे सञ्जयति रजः कर्मणि भारत।ज्ञानमावृत्य तु तमः प्रमादे सञ्जयत्युत॥

sattvaṁ sukhe sañjayati rajaḥ karmaṇi bhārata jñānam āvṛtya tu tamaḥ pramāde sañjayaty uta

Sattva attaches one to happiness, rajas to action, O Arjuna. Tamas, covering knowledge, attaches one to negligence.

— Bhagavad Gita 14.9

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