Musnad Ahmad 1260:1

'Abd al-Samad and 'Affan narrated to us, they said: Hammam narrated to us, Qatadah narrated to us, from Ishaq ibn 'Abd Allah ibn al-Harith, from his grandmother Umm Hakim, from her sister Duba'ah bint al-Zubayr: "That she presented meat to the Messenger of Allah, may Allah bless him and grant him peace, so he took a bite from it, then he prayed and did not perform ablution." My father said: 'Affan said: "She presented meat to the Prophet, may Allah bless him and grant him peace."