Srimad Bhagavatam Canto 11, Chapter 09, Text 33

SB 11.9.33

avadhuta-vacah srutva
 purvesam nah sa purva-jah
 sama-citto babhuva ha
O Uddhava, hearing the words of the avadhuta, the saintly King Yadu, who is the forefather of our own ancestors, became free from all material attachment, and thus his mind was evenly fixed on the spiritual platform.
Here the Lord praises His own dynasty, called Yadu-vamsa, because there appeared in that dynasty many great self-realized kings. King Yadu was enlightened by Dattatreya in the form of an avadhuta brahmana who taught the King to fix his consciousness on the spiritual platform of detachment by simply observing the creation of God.
Thus end the purports by the humble servants of His Divine Grace A.C. Bhaktivedanta Swami Prabhupada to the Eleventh Canto, Ninth Chapter, of the Srimad-Bhagavatam, entitled “Detachment from All that Is Material.”
Srimad Bhagavatam Canto 11, Chapter 09, Text 32
Srimad Bhagavatam Canto 11, Chapter 09 Narration