Sahih Muslim 2403
Sahih Muslim · Book 44: The Book of the Merits of the Companions · The Virtues Of 'Uthman Bin 'Affan (RA)
Sa'id b. al-Musayyib reported Abu Musa Ash'ari having said that Allah's Messenger (ﷺ) set out one day to the suburbs of Medina for reliev- ing himself. I followed his steps. The rest of the hadith is the same. Ibn Musayyib said:
حَدَّثَنَا حَسَنُ بْنُ عَلِيٍّ الْحُلْوَانِيُّ ، وَأَبُو بَكْرِ بْنُ إِسْحَاقَ قَالاَ حَدَّثَنَا سَعِيدُ بْنُ أَبِي، مَرْيَمَ حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرِ بْنِ أَبِي كَثِيرٍ ، أَخْبَرَنِي شَرِيكُ بْنُ عَبْدِ اللَّهِ بْنِ أَبِي نَمِرٍ ، عَنْ سَعِيدِ، بْنِ الْمُسَيَّبِ عَنْ أَبِي مُوسَى الأَشْعَرِيِّ ، قَالَ خَرَجَ رَسُولُ اللَّهِ صلى الله عليه وسلم يَوْمًا إِلَى حَائِطٍ بِالْمَدِينَةِ لِحَاجَتِهِ فَخَرَجْتُ فِي إِثْرِهِ . وَاقْتَصَّ الْحَدِيثَ بِمَعْنَى حَدِيثِ سُلَيْمَانَ بْنِ بِلاَلٍ وَذَكَرَ فِي الْحَدِيثِ قَالَ ابْنُ الْمُسَيَّبِ . فَتَأَوَّلْتُ ذَلِكَ قُبُورَهُمُ اجْتَمَعَتْ هَا هُنَا وَانْفَرَدَ عُثْمَانُ .
I concluded (from the manner of their sitting) the (order) of their graves. (The three) would be together (the graves of the Holy Prophet, Hadrat Abu Bakr and Hadrat Umar) and that of 'Uthman would be separate (from them).