Sayyidah Umm Atiyyah (may Allah be pleased with her) said: I took part in seven military expeditions with the Messenger of Allah (peace and blessings be upon him). I would stay behind them looking after their belongings, prepare food for them, treat the wounded and nurse the sick.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21585