Sayyidah Rubayyi' (may Allah be pleased with her) said: We used to go out on military expeditions with the Messenger of Allah (peace and blessings be upon him); we gave the people water to drink, served them, and brought the martyrs and the wounded back to Madinah.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21072