Sunan an-Nasa'i, Volume 3, Book 22, Hadith 2313 (DarusSalam) ⓘ
It was narrated that Jabir said: "We traveled with the Messenger of Allah and some of us fasted and some of us did not."
أَخْبَرَنَا أَبُو بَكْرِ بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا الْقَوَارِيرِيُّ، قَالَ حَدَّثَنَا بِشْرُ بْنُ مَنْصُورٍ، عَنْ عَاصِمٍ الأَحْوَلِ، عَنْ أَبِي نَضْرَةَ، عَنْ جَابِرٍ، قَالَ سَافَرْنَا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فَصَامَ بَعْضُنَا وَأَفْطَرَ بَعْضُنَا .
also referenced under: Hadith 2311 (Reference) & Book 22, Hadith 222 (In-Book)