hadith
10406
۞
Imam Ali (AS) said, Friendship does not become pure [and sincere] with one who is not well-mannered.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ) : لاتَصْفُو الخُلَّةُ مَعَ غَيْرِ أديب