Musannaf Ibn Abi Shayba 33:169

Abu Khalid al-Ahmar narrated to us, from Hatim ibn Abi Saghir, from Ibn Abi Mulaykah, from al-Qasim, who said: Aisha said: I said, "O Messenger of Allah, how will the people be gathered on the Day of Resurrection?" He said, "Barefoot and naked." I said, "And the women?" He said, "And the women." I said, "O Messenger of Allah, will they not be ashamed?" He said, "The matter is too severe for them to look at one another."