अभिसंधाय तु फलं दम्भार्थमपि चैव यत्। इज्यते भरतश्रेष्ठ तं यज्ञं विद्धि राजसम् ॥

abhisandhāya tu phalaṁ dambhārtham api chaiva yat ijyate bharata-śhreṣhṭha taṁ yajñaṁ viddhi rājasam

The sacrifice offered with a view verily to fruit, and also indeed for self-glorification, O best of the Bhâratas; know thou that to be of passion.

In plain words: Krishna tells Arjuna that worship done to get a reward or to look good in front of others comes from passion and selfish desire.