Translation
(6) Chapters Regarding Funerals
كتاب الجنائز
(65) Chapter: What was narrated concerning the death and burial of the Prophet (SAW)
(65) باب ذِكْرِ وَفَاتِهِ وَدَفْنِهِ ـ صلى الله عليه وسلم ـ
Sunan Ibn Majah 1633 
It was narrated that Ubayy bin Ka’b said:
“We were with the Messenger of Allah (ﷺ) and we all had a single focus, but when he passed away we started to look here and there (i.e., have different interests).”
حَدَّثَنَا إِسْحَاقُ بْنُ مَنْصُورٍ، أَنْبَأَنَا عَبْدُ الْوَهَّابِ بْنُ عَطَاءٍ الْعِجْلِيُّ، عَنِ ابْنِ عَوْنٍ، عَنِ الْحَسَنِ، عَنْ أُبَىِّ بْنِ كَعْبٍ، قَالَ كُنَّا مَعَ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ وَإِنَّمَا وَجْهُنَا وَاحِدٌ فَلَمَّا قُبِضَ نَظَرْنَا هَكَذَا وَهَكَذَا ‏.‏
Grade :  Da’if (Darussalam)
Reference : Sunan Ibn Majah 1633
In-book reference : Book 6, Hadith 201
English translation : Vol. 1, Book 6, Hadith 1633