Musnad Abu Ya'la al-Mawsili 118:75

Zakariya ibn Yahya al-Wasiti narrated to us, Rawh narrated to us, Usama ibn Zayd narrated to us, from Nafi’, from Ibn Umar, who said: And al-Zuhri narrated to me, from Anas, who said: When the Messenger of Allah (may Allah bless him and grant him peace) returned from Uhud, he heard the women of the Ansar weeping. He said: "But Hamza has no one to weep for him." That reached the women of the Ansar, so they wept for Hamza. Then the Messenger of Allah (may Allah bless him and grant him peace) slept, then he awoke while they were still weeping. He said: "Woe to them! They have not ceased weeping since today. Let them weep, but let them not weep for any deceased person after today."