Chapter 2 · verse 62 · gita.yoga.org

Bhagavad Gita 2.62

ध्यायतो विषयान्पुंसः सङ्गस्तेषूपजायते। सङ्गात् संजायते कामः कामात्क्रोधोऽभिजायते

When one thinks of objects, attachment to them arises; from attachment, desire is born; from desire, anger arises.