From his father who said that he saw the Prophet ﷺ making incisions (with a knife) into a piece of a lamb shoulder which he ate from, then he went to perform Salat without performing Wudu'. (Using translation from Tirmidhī 1836)
أَنَّهُ رَأَى النَّبِيَّ ﷺ يَأْكُلُ مِنْ كَتِفٍ يَحْتَزُّ مِنْهَا ثُمَّ دُعِيَ إِلَى الصَّلَاةِ فَصَلَّى وَلَمْ يَتَوَضَّأْ