The Book Pertaining to Judicial Decisions (Kitab Al-Aqdiyya)

Muslim :: Book 18 : Hadith 4261

'Amr b. al-'As reported that he heard Allah's Messenger (may peace be upon him) as saying: When a judge gives a decision, having tried his best to decide correctly and is right, there are two rewards for him; and if he gave a judgment after having tried his best (to arrive at a correct decision) but erred, there is one reward for him.