حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، حَدَّثَنَا مَالِكٌ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَكَلَ كَتِفَ شَاةٍ ثُمَّ صَلَّى وَلَمْ يَتَوَضَّأْ ‏.‏

Ibn 'Abbas said: The Messenger of Allah (PBUH) took (the meat of) a (goat's) shoulder and offered prayer and did not perform ablution. Translation Not Available

Book Ref: Sunan Abi Dawud Book 1 Hadith 187
Web Ref:  Sunan Abi Dawud Book 1 Hadith 187