Muwatta Malik, Book 2, Hadith 49 (In-Book)

Yahya related to me from Malik from Zayd Aslam from Ata ibn Yasar from Abdullah Abbas that the Messenger of Allah, may Allah bless him and grant him peace, ate a shoulder of lamb and then prayed without doing wudu.

حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبَّاسٍ، ‏.‏ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم أَكَلَ كَتِفَ شَاةٍ ثُمَّ صَلَّى وَلَمْ يَتَوَضَّأْ ‏.‏

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also referenced under: Book 2, Hadith 19 (USC-MSA)