وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ، عَنْ أَبِيهِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ تُفْتَحُ أَبْوَابُ الْجَنَّةِ يَوْمَ الاِثْنَيْنِ وَيَوْمَ الْخَمِيسِ فَيُغْفَرُ لِكُلِّ عَبْدٍ مُسْلِمٍ لاَ يُشْرِكُ بِاللَّهِ شَيْئًا إِلاَّ رَجُلاً كَانَتْ بَيْنَهُ وَبَيْنَ أَخِيهِ شَحْنَاءُ فَيُقَالُ أَنْظِرُوا هَذَيْنِ حَتَّى يَصْطَلِحَا أَنْظِرُوا هَذَيْنِ حَتَّى يَصْطَلِحَا ‏"‏ ‏.‏

Yahya related to me from Malik from Suhayl ibn Abi Salih from hisfather from Abu Hurayra that the Messenger of Allah, may Allah blesshim and grant him peace, said, "The doors of the Garden are opened onMonday and Thursday. Every muslim slave who does not associateanything with Allah is forgiven except for the man who has enmitybetween him and his brother. It is said, 'Leave these two until theyhave made a reconciliation. Leave these two until they have made areconciliation.' " Translation Not Available

Book Ref: Muwatta Imam Malik Book 47 Hadith 1652
Web Ref:  Muwatta Imam Malik Book 47 Hadith 17