It is narrated from Sayyidah Umm Amir bint Yazid bin al-Sakan al-Ansariyyah (may Allah be pleased with her), who was one of the women who gave the pledge of allegiance, that she brought the Prophet (peace and blessings be upon him) some meat on the bone, and he (peace and blessings be upon him) stripped it off with his teeth and ate it while he (peace and blessings be upon him) was in the mosque of Banu Abd al-Ashhal. Then he (peace and blessings be upon him) stood up and prayed without performing ablution (wudu).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21819