Chapter 18 · Liberation through Renunciation · Krishna said
Bhagavad Gita 18.7 — Tamasic renunciation
नियतस्य तु संन्यासः कर्मणो नोपपद्यते। मोहात्तस्य परित्यागस्तामसः परिकीर्तितः ॥
niyatasya tu saṃnyāsaḥ karmaṇo nopapadyate | mohāttasya parityāgastāmasaḥ parikīrtitaḥ ||
Meaning
It is not right to abandon one's proper duty. Giving it up out of confusion is called tamasic renunciation.