SB 12.8.1
sri-saunaka uvaca
suta jiva ciram sadho
vada no vadatam vara
tamasy apare bhramatam
nrnam tvam para-darsanah
Translation:
Sri Saunaka said: O Suta, may you live a long life! O saintly one, best of speakers, please continue speaking to us. Indeed, only you can show men the path out of the ignorance in which they are wandering.
Purport:
According to Srila Jiva Gosvami, the sages saw that Suta Gosvami was about to end his narration of Srimad-Bhagavatam, and thus they urged him to first tell the story of Markandeya Rsi.