Musnad Ahmad 27:1728

Ya'qub narrated to us, my father narrated to us, from Muhammad ibn Ishaq, al-Zuhri narrated to me, from Salim ibn 'Abd Allah, from his father, that he narrated to him that he heard the Messenger of Allah, peace and blessings of Allah be upon him, forbidding the people from eating the meat of their sacrificial offerings beyond three days.