अनुबन्धं क्षयं हिंसाम् अनपेक्ष्य च पौरुषम् । मोहाद् आरभ्यते कर्म यत् तत् तामसम् उच्यते ॥

anubandhaṃ kṣayaṃ hiṃsām anapekṣya ca pauruṣam | mohād ārabhyate karma yat tat tāmasam ucyate ||

Tāmasic karma: begun from delusion, ignoring consequences, waste, injury to beings, and one's own capacity.

Word by word (3)
anubandhaṃ kṣayaṃ hiṃsām anapekṣya ca pauruṣam
— without regarding (anapekṣya = not looking at, ignoring) the consequence/result (anubandham = what follows, the downstream consequence), the loss/waste (kṣayam = destruction/loss), the harm/injury to beings (hiṃsā), and also (ca) one's own capacity/manhood (pauruṣam = capability, strength)
mohād ārabhyate karma yat tat tāmasam ucyate
— action (karma) that is begun/undertaken (ārabhyate) from delusion (mohāt = from moha/confusion), that (yat) is called/said (ucyate) tāmasic (tāmasam) — four things ignored + moha as the root = tāmasic karma
anapekṣya
— without regarding/ignoring (a + apekṣya = not-having-considered; from apekṣ = to look toward, to consider); the key participial: all four items — anubandha, kṣaya, hiṃsā, pauruṣa — are ignored via this single act of non-consideration; anapekṣya IS the tāmasic cognitive failure in action

That action which is undertaken from delusion, without considering consequences, loss, harm to beings, and one's own capability — that is called tāmasic.

A modern analogy

Tāmasic karma is like a drunk driver — acting from a clouded (moha) consciousness, ignoring consequences (anubandha), ignoring the potential harm (hiṃsā), and overestimating their own capacity (pauruṣa). The four things ignored together paint a portrait of the consciousness completely obscured by tamas: no foresight, no concern for others, no self-knowledge.

V25 closes the three-fold karma analysis (V23-25). The tāmasic karma's root is moha (delusion — the tamas-quality of consciousness). Its four markers are: ignoring anubandha (consequences), kṣaya (loss), hiṃsā (harm), and pauruṣa (one's own capacity). Notably, tāmasic action ignores all four simultaneously — this is the comprehensiveness of tamas as a cognitive impairment: it blocks foresight, practical judgment, ethical sensitivity, AND self-knowledge. Compare V23's sāttvic actor: they are fully attentive to ALL of these because their action is niyata (properly ordained) and arāga-dveṣa (emotionally clear).

Pauruṣam (one's own capacity) is an unusual inclusion in a tāmasic list — it introduces a practical competence dimension. The tāmasic person begins actions without considering whether they have the actual ability to complete them. This delusion of capacity is tamas-induced: tamas distorts self-knowledge as well as world-knowledge. This creates a pattern of incomplete, abandoned, or poorly executed actions — characteristic of tāmasic behavior.

Public-domain translations (4) compare all →

The action which is undertaken from delusion, without regarding the consequence, loss, injury, and ability, that is declared to be Tamasic. [1]

That action is declared to be Tamasika which is undertaken through delusion, without heed to the consequence, loss of power and wealth, injury to others, and one's own ability. [4]

That action which is commenced from delusion, regardless of consequences, loss, injury to living beings, and one's own ability, is called dark. [9]

The action undertaken with delusion, regardless of consequences, loss, injury to others, and own ability, is declared tāmasic. [13]

This verse speaks to

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