Umar II on Death: The Caliph trembles remembering the Hereafter

Al-Qaddah reported: Whenever death was mentioned in front of Umar ibn Abdul Aziz, may Allah have mercy on him, he would tremble like a bird and weep until his tears ran through his beard.

Source: Ḥilyat al-Awliyā’ 5/316

عَنْ الْقَدَّاح أَنَّ عُمَرَ بْنَ عَبْدِ الْعَزِيزِ رحمه الله كَانَ إِذَا ذُكِرَ الْمَوْتُ انْتَفَضَ انْتِفَاضَ الطَّيْرِ وَبَكَى حَتَّى تَجْرِيَ دُمُوعُهُ عَلَى لِحْيَتِهِ

5/316 حلية الأولياء وطبقات الأصفياء