Mahabharata 1.3.10

1.3.10

sa tasminsatre samāpte hāstinapuraṃ pratyetya purohitamanurūpamanvicchamānaḥ paraṃ yatnamakarodyo me pāpakṛtyāṃ śamayediti || 10 ||

"Janamejaya, thus addressed by the celestial bitch, Sarama, became exceedingly alarmed and dejected. And after the sacrifice was concluded returned to Hastinapura, and began to take great pains in searching for a Purohita who could by procuring absolution for his sin, neutralise the effect of the curse.