‘Umar b. ‘Abd al-‘Azīz [d. 101H/719CE] used to gather a group of theologians every evening, who would discuss with him matters related to death, the Judgment Day, and the Hereafter.  As a result, they used to cry so much as if they were in a funeral crying over a dead man.

—Related by Fayyad b. Mohammad on the authority of Ata’a

I have heard Al-Qadah mentioning that whenever death is mentioned in front of ‘Umar b. ‘Abd al-‘Azīz he used to shudder just like a bird.  He also used to cry so deeply until his tears would run down his beard.

—’Abdullah b. Az-Zubair

(Read on pg 245, Al-Hafiz Jamaludeen Abi Al-Faraj and Abd Ar-Rahman bin Al-Jawzi and Al-Qurashi and Al-Baghdadi, The Biography and virtues of Omar bin Abd Al-Aziz The Ascetic Caliph. Dar Al-Kotob Al-ilmiyah. Beirut:2001 .)