Ibn 'Umar (RAA) narrated that The Messenger of Allah (ﷺ) saw a woman who was killed in one of his expeditions, so he disapproved the killing of women and children. Agreed upon. (JA)
English reference (JA): Book 11, Hadith 1313 (JA)
Arabic reference (JA): Book 11, Hadith 1286 (JA)