Musnad Ahmad 30:1899

'Affan narrated to us, Abu 'Awanah narrated to us, from 'Umar ibn Abi Salamah, from his father, from Abu Hurairah, from the Prophet (peace and blessings of Allah be upon him), who said: "They are days of eating." Abu 'Awanah said: "Meaning the days of Tashriq."