Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 19-20
Sanskrit:
गर्गाच्छिनिस्ततो गार्ग्य: क्षत्राद् ब्रह्म ह्यवर्तत ।दुरितक्षयो महावीर्यात् तस्य त्रय्यारुणि: कवि: ॥ १९ ॥पुष्करारुणिरित्यत्र ये ब्राह्मणगतिं गता: ।बृहत्क्षत्रस्य पुत्रोऽभूद्धस्ती यद्धस्तिनापुरम् ॥ २० ॥
ITRANS:
gargāc chinis tato gārgyaḥkṣatrād brahma hy avartataduritakṣayo mahāvīryāttasya trayyāruṇiḥ kaviḥ
Translation:
From Garga came a son named Śini, and his son was Gārgya. Although Gārgya was a kṣatriya, there came from him a generation of brahmaṇas. From Mahāvīrya came a son named Duritakṣaya, whose sons were Trayyāruṇi, Kavi and Puṣkarāruṇi. Although these sons of Duritakṣaya took birth in a dynasty of kṣatriyas, they too attained the position of brāhmaṇas. Bṛhatkṣatra had a son named Hastī, who established the city of Hastināpura [now New Delhi].