One verse

Srimad Bhagavatam 3.5.20

3.5.20

माण्डव्यशापाद्भगवान् प्रजासंयमनो यम: । भ्रातु: क्षेत्रे भुजिष्यायां जात: सत्यवतीसुतात् ॥ २० ॥

mandavya-sapad bhagavan praja-samyamano yamah bhratuh ksetre bhujisyayam jatah satyavati-sutat

mandavya
the great rsi Mandavya Muni
sapat
by his curse
bhagavan
the greatly powerful
praja
one who is born
samyamanah
controller of death
yamah
known as Yamaraja
bhratuh
of the brother
ksetre
in the wife
bhujisyayam
kept
jatah
born
satyavati
Satyavati (the mother of both Vicitravirya and Vyasadeva)
sutat
by the son (Vyasadeva).

I know that you are now Vidura due to the cursing of Mandavya Muni and that formerly you were King Yamaraja, the great controller of living entities after their death. You were begotten by the son of Satyavati, Vyasadeva, in the kept wife of his brother.