Ibn Abbas reported: The Messenger of Allah, peace and blessings be upon him, said, “It is not lawful to boycott for more than three days. If the two meet and one greets the other with peace and receives a response, they will share the reward. If the other refuses to return his greeting, he is free of sin and it backfires against the one boycotting. I fear that if the two die while boycotting each other, they will not be together in Paradise.”
Source: al-Mu’jam al-Awsaṭ lil-Ṭabarānī 8930
Grade: Sahih li ghayrihi (authentic due to external evidence) according to Al-Albani
عَنِ ابْن عَبَّاسٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَا يَحِلُّ الْهَجْرُ فَوْقَ ثَلَاثَةِ أَيَّامٍ فَإِنْ الْتَقَيَا فَسَلَّمَ أَحَدُهُمَا عَلَى الْآخَرِ فَرَدَّ عَلَيْهِ الْآخَرُ السَّلَامَ اشْتَرَكَا فِي الْأَجْرِ وَإِنْ أَبَى الْآخَرُ أَنْ يَرُدَّ السَّلَامَ بَرِئَ هَذَا مِنَ الْإِثْمِ وَبَاءَ بِهِ الْآخَرُ وَقَدْ خَشِيتُ إِنْ مَاتَا وَهُمَا مُتَهَاجِرَانِ أَنْ لَا يَجْتَمِعَا فِي الْجَنَّةِ
8930 المعجم الأوسط للطبراني
2760 المحدث الألباني خلاصة حكم المحدث صحيح لغيره في صحيح الترغيب
