May Agni (fire) confound those Dasyus who do not perform no sacred rites, who are babblers defective in speech, niggarads, unbelievers, not honouring Agni, not offering sacrifices, Agni: preceding those who institute no sacred ceremonies

---Rigveda, 7.6.3 (Source)

Stop, Sura, your yellow horses, for this Ethasha, Indra, drags the wheels: have driven those who offer no sacrifices to the opposite bank of the ninety rivers, you compel them (to do) what is to be done

[Stop sending sunlight (yellow horses) to those who don't sacrifice]

---Rigveda 1.121.13 (Source)

Exterminate also Mitra and Varuna, those who, emulously contending, disturb the rites that are agreeable and beneficial to you both: those divinities, those mortals, who are not diligent in adoration, those who performing works perform not sacrifice, those who don't propitiate you.

---Rigveda 6.67.9 (Source)

It was translated by H.H Wilson. And the Rigveda is uploaded in vedicheritage.gov.in and managed by Ministry of Culture, Gov of India.