SB 1.13.12
ity ukto dharma-rajena
sarvam tat samavarnayat
yathanubhutam kramaso
vina yadu-kula-ksayam
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Thus being questioned by Maharaja Yudhisthira, Mahatma Vidura gradually described everything he had personally experienced, except news of the annihilation of the Yadu dynasty.