Musnad Ahmad 1153:1195

Hajjaj narrated to us, Ibn Lahi'ah narrated to us, from al-Walid ibn Abi al-Walid, who said: I heard al-Qasim informing from Aisha, from the Prophet, peace and blessings of Allah be upon him, that he said: "There is no good in the gathering of women except in a mosque, or at the funeral of one killed."