‘Abdullah bin Muhib says that ‘Uthman (may Allah be pleased with him) said to Ibn ‘Umar (may Allah be pleased with them both): “Go (and act as a judge) and pass judgments among the people.” He replied: “O Commander of the Believers! Will you excuse me?” ‘Uthman (may Allah be pleased with him) said: “Why do you dislike it? Your father used to pass judgments.” At this, he said: “I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: ‘Whoever becomes a judge and judges with justice, it is fitting that he escapes from it evenly’ (i.e., he is neither deserving of reward nor punishment). After that, what hope (of good) can I have?” There is also a story in the hadith. © Imam Tirmidhi says:
1- The hadith of Ibn ‘Umar (may Allah be pleased with them both) is gharib, and in my view, its chain is not connected. And the ‘Abdul Malik from whom Mu’tamir narrated it is ‘Abdul Malik bin Abi Jamilah.
2- There is also a narration in this chapter from Abu Hurairah (may Allah be pleased with him).