Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:2286ʿAffān > Wuhayb > Mūsá b. ʿUqbah > Muḥammad b. ʿAmr b. ʿAṭāʾ > Ibn ʿAbbās

[Machine] "He heard Ibn Abbas say that the Prophet ﷺ ate either a grilled forearm or a shoulder, then he prayed without performing ablution and without touching water."  

أحمد:٢٢٨٦حَدَّثَنَا عَفَّانُ حَدَّثَنَا وُهَيْبٌ حَدَّثَنَا مُوسَى بْنُ عُقْبَةَ حَدَّثَنَا مُحَمَّدُ بْنُ عَمْرِو بْنِ عَطَاءٍ

أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ يَقُولُ إِنَّ النَّبِيَّ ﷺ أَكَلَ إِمَّا ذِرَاعًا مَشْوِيًّا وَإِمَّا كَتِفًا ثُمَّ صَلَّى وَلَمْ يَتَوَضَّأْ وَلَمْ يَمَسَّ مَاءً  


See similar narrations below:

Collected by Aḥmad
ahmad:2341ʿAttāb b. Ziyād > ʿAbdullāh / Ibn al-Mubārak > Mūsá b. ʿUqbah > Muḥammad b. ʿAmr b. ʿAṭāʾ > Ibn ʿAbbās

[Machine] He mentioned to him that he heard Ibn Abbas saying, "I saw the Messenger of Allah ﷺ eating from a shoulder or an arm, then he stood up and prayed without performing ablution."  

أحمد:٢٣٤١حَدَّثَنَا عَتَّابُ بْنُ زِيَادٍ حَدَّثَنَا عَبْدُ اللهِ يَعْنِي ابْنَ الْمُبَارَكِ قَالَ أَخْبَرَنَا مُوسَى بْنُ عُقْبَةَ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَطَاءٍ

أَنَّهُ حَدَّثَهُ أَنَّهُ سَمِعَ ابْنَ عَبَّاسٍ يَقُولُ رَأَيْتُ رَسُولَ اللهِ ﷺ أَكَلَ مِنْ كَتِفٍ أَوْ ذِرَاعٍ ثُمَّ قَامَ فَصَلَّى وَلَمْ يَتَوَضَّأْ