Mahabharata 1.8.1

1.8.1

sūta uvāca |
sa cāpi cyavano brahmanbhārgavo'janayatsutam |
sukanyāyāṃ mahātmānaṃ pramatiṃ dīptatejasam || 1 ||

"Sauti said, 'O Brahmana, Chyavana, the son of Bhrigu, begot a son in the womb of his wife Sukanya. And that son was the illustrious Pramati of resplendent energy. And Pramati begot in the womb of Ghritachi a son called Ruru. And Ruru begot on his wife Pramadvara a son called Sunaka. And I shall relate to you in detail, O Brahmana, the entire history of Ruru of abundant energy. O listen to it then in full!