مُسْنَدُ أَحْمَدَ
Musnad Ahmad 24
Musnad Abu Bakr as-Siddiq (ra)
حَدَّثَنَا يَعْقُوبُ، حَدَّثَنَا أَبِي، عَنْ صَالِحٍ، قَالَ قَالَ ابْنُ شِهَابٍ أَخْبَرَنِي رَجُلٌ، مِنْ الْأَنْصَارٍ غَيْرُ مُتَّهَمٍ أَنَّهُ سَمِعَ عُثْمَانَ بْنَ عَفَّانَ، يُحَدِّثُ أَنَّ رِجَالًا، مِنْ أَصْحَابِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ حِينَ تُوُفِّيَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ حَزِنُوا عَلَيْهِ حَتَّى كَادَ بَعْضُهُمْ أَنْ يُوَسْوِسَ قَالَ عُثْمَانُ فَكُنْتُ مِنْهُمْ فَذَكَرَ مَعْنَى حَدِيثِ أَبِي الْيَمَانِ عَنْ شُعَيْبٍ.
Uthman bin 'Affan narrated that when the Messenger of Allah (ﷺ) died, some of the Companions of the Prophet (ﷺ) grieved for him so much that they were almost unaware of what was going on around thern. 'Uthman said: I was one of them... and he narrated a hadeeth similar to that of Abul Yaman from Shu'aib.
Musnad Ahmad, 24Sahih because of other similar reports (Darussalam)