Bhagwad Gita
Chapter 18, Verse 28
अयुक्तः प्राकृतः स्तब्धः शठो नैष्कृतिकोऽलसः।विषादी दीर्घसूत्री च कर्ता तामस उच्यते।।18.28।।
And that worker who is always engaged in work against the injunction of the scripture, who is materialistic, obstinate, cheating and expert in insulting others, who is lazy, always morose and procrastinating, is a worker in the mode of ignorance.