Mishkat al-Masabih 19 Jihad كتاب الجهاد 153

وَعَن أُمِّ عطيَّةَ قَالَتْ: غَزَوْتُ مَعَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ سَبْعَ غَزَوَاتٍ أَخْلُفُهُمْ فِي رِحَالِهِمْ فَأَصْنَعُ لَهُمُ الطَّعَامَ وَأُدَاوِي الْجَرْحَى وَأَقُومُ عَلَى المرضى. رَوَاهُ مُسلم

Umm ‘Atiya said: I went on seven expeditions with God’s Messenger and stayed behind to look after the baggage, prepare food for them, tend the wounded and look after the sick. Muslim transmitted it.