Abu Khirash al-Aslami reported that he heard the Messenger of Allah, may Allah bless him and grant him peace, say, "Whoever snubs his brother for a year has split his blood."  

أَنَّهُ سَمِعَ رَسُولَ اللهِ ﷺ يَقُولُ مَنْ هَجَرَ أَخَاهُ سَنَةً فَهُوَ كَسَفْكِ دَمِهِ  

'Imran ibn Abi Anas reported from a man of Aslam who was one of the Companions of the Prophet, may Allah bless him and grant him peace, that the Prophet, may Allah bless him and grant him peace, said, "Snubbing a believer for a year is like spilling his blood."  

حَدَّثَهُ أَنَّ رَجُلاً مِنْ أَسْلَمَ مِنْ أَصْحَابِ النَّبِيِّ ﷺ حَدَّثَهُ عَنِ النَّبِيِّ ﷺ قَالَ هِجْرَةُ الْمُسْلِمِ سَنَةً كَدَمِهِ وَفِي الْمَجْلِسِ مُحَمَّدُ بْنُ الْمُنْكَدِرِ وَعَبْدُ اللهِ بْنُ أَبِي عَتَّابٍ فَقَالاَ قَدْ سَمِعْنَا هَذَا عَنْهُ