Musnad Ahmad 27:1216

Uthman ibn Umar narrated to us, Usamah narrated to us, from Nafi, from Ibn Umar, that the Messenger of Allah (peace and blessings of Allah be upon him) arrived on the day of Uhud and heard women from Banu Abd al-Ashhal weeping over their dead. He said: "But Hamzah has no one to weep for him." So the women of the Ansar came and wept for Hamzah in his presence. The Messenger of Allah (peace and blessings of Allah be upon him) awoke while they were weeping, and he said: "Woe to them, are you still here weeping until now? Order them to return, and let them not weep over any dead person after today."