Bhagavad Gita 18.25

18.25 That action which is undertaken from delusion, without a regard for the conseences, loss, injury and (one's own) ability that is declared to be Tamasic (dark).

That action performed in illusion, in disregard of scriptural injunctions, and without concern for future bondage or for violence or distress caused to others is said to be in the mode of ignorance.