It would be no exaggeration to say that the Ameer-ul-Mu’mineen ‘Umar bin al-Khattab رضي الله عنه was so much feared by the Muslims that once he heard a group of men talking about a certain lady. So ‘Umar رضي الله عنه wanted to know about this Muslimah and thus he summoned for her. This Muslimah was pregnant and when she saw ‘Umar رضي الله عنه and he saw her, she had a miscarriage!
Once ‘Umar رضي الله عنه was getting his hair cut suddenly he coughed and because of this the barber urinated on himself because of the fear. The other Sahabah رضي الله عنهم got to know about this incident and ‘Uthman bin ‘Affan, ‘Ali bin Abi Talib, ‘Abdur Rahman ibn ‘Awf, Az-Zubayr bin ‘Awwam رضي الله عنهم gathered to discuss this issue about the immense fear of ‘Umar رضي الله عنه in the hearts of the believers. They came up with the idea that they will choose from themselves a person who would go speak to ‘Umar رضي الله عنه about it and the boldest of them was ‘Abdur Rahman ibn ‘Awf رضي الله عنه thus he was sent. He went to ‘Umar رضي الله عنه and told him how much the believers feared him. ‘Umar رضي الله عنه responded, “O’ ‘Abdur Rahman, sometimes I feel that I am too strict so I soften whilst sometimes I feel that I am too lenient so I become strict I don’t know what will happen of me when I meet Allah سبحانه و تعالى!” Hearing this, ‘Abdur Rahman رضي الله عنه started weeping and he left saying, “Woe to you O’ Ummah of Muhammad, what will happen to you when you (‘Umar) will leave!”