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.
muslim:359aʿAlī b. Ḥujr > Ismāʿīl b. Jaʿfar > Muḥammad b. ʿAmr b. Ḥalḥalah > Muḥammad b. ʿAmr b. ʿAṭāʾ > Ibn ʿAbbās

The Messenger of Allah ﷺ dressed himself, and then went out for prayer, when he was presented with bread and meat. He took three morsels out of that, and then offered prayer along with other people and did not touch water.  

مسلم:٣٥٩aوَحَدَّثَنِي عَلِيُّ بْنُ حُجْرٍ حَدَّثَنَا إِسْمَاعِيلُ بْنُ جَعْفَرٍ حَدَّثَنَا مُحَمَّدُ بْنُ عَمْرِو بْنِ حَلْحَلَةَ عَنْ مُحَمَّدِ بْنِ عَمْرِو بْنِ عَطَاءٍ عَنِ ابْنِ عَبَّاسٍ

أَنَّ رَسُولَ اللَّهِ ﷺ جَمَعَ عَلَيْهِ ثِيَابَهُ ثُمَّ خَرَجَ إِلَى الصَّلاَةِ فَأُتِيَ بِهَدِيَّةٍ خُبْزٍ وَلَحْمٍ فَأَكَلَ ثَلاَثَ لُقَمٍ ثُمَّ صَلَّى بِالنَّاسِ وَمَا مَسَّ مَاءً