Hadithcore
Sunan Abi Dawud, 3209
sahih· Al-Albani

Narrated Amir:

Ali, Fadl and Usamah ibn Zayd washed the Messenger of Allah (ﷺ) and they put him in his grave. Marhab or Ibn AbuMarhab told me that they also made AbdurRahman ibn Awf join them. When Ali became free, he said: The People of the man serve him.

حَدَّثَنَا أَحْمَدُ بْنُ يُونُسَ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ، عَنْ عَامِرٍ، قَالَ غَسَّلَ رَسُولَ اللَّهِ صلى الله عليه وسلم عَلِيٌّ وَالْفَضْلُ وَأُسَامَةُ بْنُ زَيْدٍ وَهُمْ أَدْخَلُوهُ قَبْرَهُ قَالَ وَحَدَّثَنِي مُرَحَّبٌ أَوِ ابْنُ أَبِي مُرَحَّبٍ أَنَّهُمْ أَدْخَلُوا مَعَهُمْ عَبْدَ الرَّحْمَنِ بْنَ عَوْفٍ فَلَمَّا فَرَغَ عَلِيٌّ قَالَ إِنَّمَا يَلِي الرَّجُلَ أَهْلُهُ ‏.‏

References2 variants
In-Book Reference
Book 21, Hadith 121
English Reference
Book 20, Hadith 3203