to Imam 'Ali (AS), 'When two people bring a case against each other before you to be judged, do not judge the first before you hear out the second. If you adhere to this, judging will become clear for you.' Imam ?Ali (AS) said, 'And after that I continued to be a judge.' The Prophet (SAWA) said [supplicating for him], ?O Allah, make him understand judgment.'
Prophet Muhammad al-Mustafa [sawa]
Kitab man la yahdurahi al-Faqih, v. 3, p. 13, no. 3238