O King, we, who are your adherents in all respects, shall therefore kill the Vedic brāhmaṇas, the persons engaged in offering sacrifices and austerities, and the cows that supply milk, from which clarified butter is obtained for the ingredients of sacrifice.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तस्मात्सर्वात्मना राजन् ब्राह्मणान् ब्रह्मवादिनः । तपस्विनो यज्ञशीलान् गाश्च हन्मो हविर्दुघाः
tasmātsarvātmanā rājan brāhmaṇān brahmavādinaḥ | tapasvino yajñaśīlān gāśca hanmo havirdughāḥ
SB 10.4.40