1932
Sahih+3
Abu Ayyub Al-Ansari narrated that the Messenger of Allah said:: It is not lawful for the Muslim to shun his brother for more than three (days); they come fare to fare and this one turns away, and that one turns away. The best of them is the one who initiates the Salam
SahihAhmad Muhammad Shakir
SahihAl-Albani