Srimad Bhagavatam Canto 03, Chapter 04, Text 23

SB 3.4.23

sri-suka uvaca
ity uddhavad upakarnya
 suhrdam duhsaham vadham
jñanenasamayat ksatta
 sokam utpatitam budhah
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Sri Sukadeva Gosvami said: After hearing from Uddhava all about the annihilation of his friends and relatives, the learned Vidura pacified his overwhelming bereavement by dint of his transcendental knowledge.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Vidura was informed that the result of the Battle of Kuruksetra was the annihilation of his friends and relatives as well as the destruction of the Yadu dynasty and also the passing away of the Lord. All these hurled him into bereavement for the time being, but because he was highly advanced in transcendental knowledge, he was quite competent to pacify himself by enlightenment. As it is stated in Bhagavad-gita, due to our long association with bodily relationships, bereavement on account of the annihilation of friends and relatives is not at all astonishing, but one has to learn the art of subduing such bereavement with higher, transcendental knowledge. The talks between Uddhava and Vidura on the topic of Krsna began at sunset, and Vidura was now further advanced in knowledge due to his association with Uddhava.
Srimad Bhagavatam Canto 03, Chapter 04, Text 22
Srimad Bhagavatam Canto 03, Chapter 04, Text 24