Chapter 3 · The Yoga of Action · Krishna said
Bhagavad Gita 3.34 — Liking and disliking
इन्द्रियस्येन्द्रियस्यार्थे रागद्वेषौ व्यवस्थितौ। तयोर्न वशमागच्छेत्तौ ह्यस्य परिपन्थिनौ ॥
indriyasyendriyasyārthe rāgadveṣau vyavasthitau | tayorna vaśamāgacchettau hyasya paripanthinau ||
Meaning
Liking and disliking sit firmly in every sense towards its object. One should not come under their control, for they are obstacles on one's path.