It is narrated from Sayyidah Umm Hakim bint al-Zubayr (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) came to her sister Sayyidah Duba'ah bint al-Zubayr (may Allah be pleased with her), and bit off meat from a shoulder with his teeth and ate it. Then he stood up and prayed, and did not perform ablution.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21676