What are hadiths about arbitration? Examples of hadiths about arbitration…
According to Anas b. Malik (ra), the Messenger of Allah (saw) said, “Do not hate one another, nor be jealous of one another; and do not desert one another. But O Allah’s worshipers! Be Brothers! And it is unlawful for a Muslim to desert his brother Muslim (and not to speak to him) for more than three days.” (al-Bukhari, al-Adab, 62)
According to Abu al-Dardaʾ (ra), the Messenger of Allah (saw) said, “Shall I inform you of something more excellent in degree than fasting, prayer, and almsgiving (ṣadaqa)?” The people replied, “Yes, the Prophet of Allah!” He said, “It is putting things right between people, spoiling them is the razor (of faith).” (Abu Daʾud, al-Adab, 50; al-Tirmidhi, Sifat al-Qiyama, 56)
According to Abu Ayyub (ra), the Messenger of Allah (saw) said, “It is not lawful for a Muslim to desert (not to speak to) his brother Muslim for more than three days or, while meeting, to turn his face to one side and the other turns his face to the other side. Lo! The better of the two is the one who starts greeting the other.” (al-Bukhari, al-Istiʾdhan, 9)
The mother of Humayd b. ʿAbd al-Rahman, Umm Kulthum b. ʿUqba (ra) said: I heard the Prophet (saw) say: “One who brings peace between people is not a liar if he says something good or reports something good in order to establish peace between two people.” (al-Tirmidhi, al-Birr, 26)
Abu Khirash al-Sulami (ra) said he heard the Messenger of Allah (saw) say, “If one keeps apart from his brother for a year, it is like shedding his blood.” (Abu Daʾud, al-Adab, 47; Ibn Hanbal, IV, 219)
Source: Presidency Of Religious Affairs The Turkey, Islam Through Hadiths