Bhagavatapurana 10.36.7

10.36.7

gopālaiḥ paśubhir manda trāsitaiḥ kim asattama /
mayi śāstari duṣṭānāṃ tvad-vidhānāṃ durātmanām //

7. Comforted them with His words, "Fear not, be not afraid"; and called unto Himself the asura in the form of a bull and said, "O fool, O wretch of wretches, what purpose is gained in terrifying cowherds and brutes?

8. "I am here to put down the strength and pride of the wicked and evil-minded like thee." So saying Krishna struck his arms and by the clapping of His hands, kindled the wrath of Arishta.