SB 1.16.17
tasyaivam vartamanasya
purvesam vrttim anvaham
natidure kilascaryam
yad asit tan nibodha me
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Now you may hear from me of what happened while Maharaja Pariksit was passing his days hearing of the good occupations of his forefathers and being absorbed in thought of them.