Bhagavad Gita Chapter 18.25
anubandhaḿ kṣayaḿ hiḿsām
anapekṣya ca pauruṣam
mohād ārabhyate karma
yat tat tāmasam ucyate
Translation
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.