حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، قَالَ: حَدَّثَنَا زُهَيْرٌ، قَالَ: حَدَّثَنَا كِنَانَةُ مَوْلَى صَفِيَّةَ، عَنْ أَبِي هُرَيْرَةَ قَالَ: أَبْخَلُ النَّاسِ مَنْ بَخِلَ بِالسَّلاَمِ، وَالْمَغْبُونُ مَنْ لَمْ يَرُدَّهُ، وَإِنْ حَالَتْ بَيْنَكَ وَبَيْنَ أَخِيكَ شَجَرَةٌ، فَإِنِ اسْتَطَعْتَ أَنْ تَبْدَأَهُ بِالسَّلامِ لَا يَبْدَأُكَ فَافْعَلْ.
It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him), he said: The greatest miser is the one who is miserly in greeting (salam), and the one who suffers loss is the one who does not reply to the greeting. If a tree comes between you and your brother, and you are able to initiate the greeting, then do so.