Hadith 1646
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنِ ابْنِ شِهَابٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " لاَ تَبَاغَضُوا وَلاَ تَحَاسَدُوا وَلاَ تَدَابَرُوا وَكُونُوا عِبَادَ اللَّهِ إِخْوَانًا وَلاَ يَحِلُّ لِمُسْلِمٍ أَنْ يُهَاجِرَ أَخَاهُ فَوْقَ ثَلاَثِ لَيَالٍ " .
Yahya related to me from Malik from Ibn Shihab from Anas ibn Malik that the Messenger of Allah, may Allah bless him and grant him peace, said, "Do not be angry with each other and do not envy each other and do not turn away from each other, and be slaves of Allah, brothers. It is not halal for a muslim to shun his brother for more than three nights
Sahih (Salim al-Hilali)
Muwatta Malik 1646 · Book 47, Hadith 14