General Behavior (Kitab Al-Adab)
كتاب الأدب
Read the English translation first, with the original Arabic directly underneath.
Regarding when a man parts from another, then meets him again, he should greet him with the salam
Narrated AbudDarda':
The Prophet (ﷺ) said: Shall I not inform you of something more excellent in degree than fasting, prayer and almsgiving (sadaqah)? The people replied: Yes, Prophet (ﷺ) of Allah! He said: It is putting things right between people, spoiling them is the shaver (destructive).
حَدَّثَنَا مُحَمَّدُ بْنُ الْعَلاَءِ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ عَمْرِو بْنِ مُرَّةَ، عَنْ سَالِمٍ، عَنْ أُمِّ الدَّرْدَاءِ، عَنْ أَبِي الدَّرْدَاءِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " أَلاَ أُخْبِرُكُمْ بِأَفْضَلَ مِنْ دَرَجَةِ الصِّيَامِ وَالصَّلاَةِ وَالصَّدَقَةِ " . قَالُوا بَلَى . قَالَ " إِصْلاَحُ ذَاتِ الْبَيْنِ وَفَسَادُ ذَاتِ الْبَيْنِ الْحَالِقَةُ " .