SB 3.19.34
anyesam punya-slokanam
uddama-yasasam satam
upasrutya bhaven modah
srivatsankasya kim punah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
What to speak of hearing the pastimes of the Lord, whose chest is marked with Srivatsa, people may take transcendental pleasure even in hearing of the works and deeds of the devotees, whose fame is immortal.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Bhagavatam literally means the pastimes of the Lord and the Lord’s devotees. For example, there are pastimes of Lord Krsna and narrations of devotees like Prahlada, Dhruva and Maharaja Ambarisa. Both pastimes pertain to the Supreme Personality of Godhead because the devotees’ pastimes are in relation with Him. The Mahabharata, for example, the history of the Pandavas and their activities, is sacred because the Pandavas had a direct relationship with the Supreme Personality of Godhead.