Abdullah ibn Mawhib reported that Sayyidina Uthman (RA) said to Sayyidina Ibn Umar (RA), ‘Go and judge between people.” He said, Will you not excuse me from it, Amir ui-Mu mineen?’ He said, “Why do you detest it while your father used to judge?” He said, “I have heard Allah’s Messenger say, He who is a judge and judges with justice, then it is hoped that he will just manage to get over (on the Day resurrection), So shall I entertain hope even after that?” There is a in story this hadith.