Revākhaṇḍa ascribed to the Vāyupurāṇa (RKV) 32.2

32.2

yudhiṣṭhira uvāca:
ko 'sau siddhas tadā brahmaṃstasmiṃstīrthe mahātapāḥ /
putraḥ kasya tu ko heturetadicchāmi veditum //

Yudhiṣṭhira said: / Who is that person of great austerities who attained perfection at that pilgrimage place, O brahmin? / Whose son was he, and what was the cause? I wish to know this.