It is narrated from Sayyiduna Muhammad bin Maslamah (may Allah be pleased with him) that the last of the two practices of the Prophet (peace and blessings be upon him) was that he (peace and blessings be upon him) ate meat, then prayed and did not perform ablution.
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16570