Mbh 5.149.1a

“Vasudeva said, ‘After Gandhari had said this, that ruler of men, Dhritarashtra, then said these words to Duryodhana in the midst of the (assembled) monarchs, “O Duryodhana, listen, O son, to what I say, and blessed be thou; do that if thou hast any respect for thy father. The lord of creatures, Soma, was the original progenitor of the Kuru race. Sixth in descent from Soma, was Yayati, the son of Nahusha. Yayati had five best of royal sages as his sons. Amongst them, lord Yadu of mighty energy was the eldest-born. Younger to Yadu was Puru, who, as our progenitor, brought forth by Sarmistha the daughter of Vrishaparvan. Yadu, O best of the Bharatas, was born of Devayani and, therefore, O sire, was the daughter’s son of Sukra, otherwise called Kavya, of immeasurable energy. Endued with great strength and prowess, that progenitor of the Yadavas, filled with pride and possessed of wicked understanding, humiliated all the Kshatriyas. Intoxicated with pride of strength, he obeyed not the injunctions of his father. Invincible in battle, he insulted his father and brother. On this earth girt on four sides by the sea, Yadu became all-powerful, and reducing all to subjection, he established himself in this city called after the elephant. His father Yayati, the son of Nahusha, enraged with him, cursed that son of his, and, O son of Gandhari, even expelled him from the kingdom. Angry Yayati also cursed those brothers of Yadu who were obedient to that eldest brother of theirs, who was so proud of his strength. And having cursed these his sons, that best of kings placed on his throne his youngest son Puru who was docile and obedient to him. Thus even the eldest son may be passed over and deprived of the kingdom, and younger sons may, in consequence of their respectful behaviour to the aged, obtain the kingdom. So also, conversant with every virtue there was my father’s grandfather, king Pratipa, who was celebrated over the three worlds.