مسند أحمد

It was narrated from Yazeed bin Mawhab that `Uthman (رضي الله عنه) said to Ibn `Umar (رضي الله عنه). Judge between the people. He said:I will not judge between two people or lead two men in prayer. Did you not hear the Prophet (ﷺ) say, `Whoever seeks refuge with Allah has indeed sought refuge with a powerful one`?`Uthman (رضي الله عنه) said. Yes I did. He said: then I seek refuge with Allah lest you appoint me to some post. So Uthman (رضي الله عنه) let him off and said: Do not tell anyone else about this.