Sahih Muslim , Book 32, Hadith 172 (In-Book) ⓘ

It has been narrated on the authority of Umm 'Atiyya, the Ansarite, who said: I took part with the Messenger of Allah in seven battles. I would stay behind in the camp of men, cook their food, treat the wounded and nurse the sick.

حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ الرَّحِيمِ بْنُ سُلَيْمَانَ، عَنْ هِشَامٍ، عَنْ حَفْصَةَ، بِنْتِ سِيرِينَ عَنْ أُمِّ عَطِيَّةَ الأَنْصَارِيَّةِ، قَالَتْ غَزَوْتُ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم سَبْعَ غَزَوَاتٍ أَخْلُفُهُمْ فِي رِحَالِهِمْ فَأَصْنَعُ لَهُمُ الطَّعَامَ وَأُدَاوِي الْجَرْحَى وَأَقُومُ عَلَى الْمَرْضَى.