Sahih al-Bukhari, Hadith 5679 ⓘ
Narrated Rubai bint Mu`adh bin Afra: We used to go for Military expeditions along with Allah's Messenger and provide the people with water, serve them and bring the dead and the wounded back to Medina.
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا بِشْرُ بْنُ الْمُفَضَّلِ، عَنْ خَالِدِ بْنِ ذَكْوَانَ، عَنْ رُبَيِّعَ بِنْتِ مُعَوِّذٍ ابْنِ عَفْرَاءَ، قَالَتْ كُنَّا نَغْزُو مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم نَسْقِي الْقَوْمَ، وَنَخْدُمُهُمْ، وَنَرُدُّ الْقَتْلَى وَالْجَرْحَى إِلَى الْمَدِينَةِ.
also referenced under: Book 76, Hadith 2 (In-Book) & Volume 7, Book 71, Hadith 583 (USC-MSA)