question #2 Sahih al-Bukhari 6077, Book 78, Hadith 105 : What actions are considered unlawful when two Muslims meet after a disagreement?

Allah’s Messenger (ﷺ) said, “It is not lawful for a man to desert his brother Muslim for more than three
nights. (It is unlawful for them that) when they meet, one of them turns his face away from the other,
and the other turns his face from the former, and the better of the two will be the one who greets the
other first.”