My father said, "I saw Messenger of Allah ﷺ taking a piece of (cooked) mutton from the shoulder region and then he was called for prayer. He put his knife down and prayed without repeating ablution."  

أَخْبَرَهُ أَنَّهُ رَأَى رَسُولَ اللَّهِ ﷺ يَحْتَزُّ مِنْ كَتِفِ شَاةٍ فَدُعِيَ إِلَى الصَّلاَةِ فَأَلْقَى السِّكِّينَ فَصَلَّى وَلَمْ يَتَوَضَّأْ  

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  

[Machine] I saw the Messenger of Allah ﷺ eating from the shoulder of a sheep, then he was invited to prayer and he prayed without performing ablution.  

رَأَيْتُ رَسُولَ اللهِ ﷺ يَأْكُلُ يَحْتَزُّ مِنْ كَتِفِ شَاةٍ ثُمَّ دُعِيَ إِلَى الصَّلَاةِ فَصَلَّى وَلَمْ يَتَوَضَّأْ  

[Machine] I saw the Messenger of Allah ﷺ eating with his right hand from a shoulder (of meat), then he was called to prayer, so he prayed without performing ablution.  

رَأَيْتُ رَسُولَ اللهِ ﷺ يَأْكُلُ يَحْتَزُّ مِنْ كَتِفٍ ثُمَّ دُعِيَ إِلَى الصَّلَاةِ فَصَلَّى وَلَمْ يَتَوَضَّأْ  

That he saw Messenger of Allah ﷺ cutting a piece of mutton from its shoulder part he was carrying in his hand. When he was called for prayer, he put it down and the knife with which he was cutting it. Then he stood up and offered the prayer without performing new ablution. (Using translation from Bukhārī 5462)  

أَخْبَرَهُ أَنَّهُ رَأَى رَسُولَ اللَّهِ ﷺ «يَحْتَزُّ مِنْ كَتِفِ شَاةٍ فِي يَدِهِ ثُمَّ دُعِيَ إِلَى الصَّلَاةِ فَأَلْقَى السِّكِّينَ الَّتِي كَانَ يَحْتَزُّ بِهَا ثُمَّ قَامَ فَصَلَّى وَلَمْ يَتَوَضَّأْ»