The Book of Menstruation
حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ بْنِ قَعْنَبٍ، 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 reported:The Messenger of Allah (ﷺ) took (meat of) goat's shoulder and offered prayer and did not perform ablution
From Sahih Muslim, whose reports the scholars accept as authentic.