Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 24
Sanskrit:
यस्मादसाविमान् विप्रानध्यास्ते प्रतिलोमज: ।धर्मपालांस्तथैवास्मान् वधमर्हति दुर्मति: ॥ २४ ॥
ITRANS:
yasmād asāv imān viprānadhyāste pratiloma-jaḥdharma-pālāṁs tathaivāsmānvadham arhati durmatiḥ
Translation:
[Lord Balarāma said:] Because this fool born from an improperly mixed marriage sits above all these brāhmaṇas and even above Me, the protector of religion, he deserves to die.