Musannaf Ibn Abi Shaybah

It is narrated from Hazrat Saeed bin Amr (may Allah be pleased with him) that Umm Kabsha, a woman from Banu Uzrah, submitted to the Messenger of Allah (peace and blessings be upon him): "O Messenger of Allah! Grant me permission to accompany such-and-such army." The Prophet (peace and blessings be upon him) said: "No." She said: "O Messenger of Allah (peace and blessings be upon him), I am not going with the intention of fighting; I wish to go with the intention of dressing the wounds of the sick and injured and giving water to the ill." The Prophet (peace and blessings be upon him) said: "If this would not become a habit and it would not be said that such-and-such woman went for jihad, I would have granted you permission, but remain seated (do not go along)."