Bhagavad Gita 17.12 — Rajasic sacrifice

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

abhisandhāya tu phalaṃ dambhārthamapi caiva yat | ijyate bharataśreṣṭha taṃ yajñaṃ viddhi rājasam ||

Meaning

But a sacrifice done for the sake of reward, or for show, O best of the Bharatas — know that to be rajasic.