Sahih Muslim #829 · The Book of Marriage

Sahih MuslimIbn 'Abbas reported
Sahih Muslim · Book 16 · The Book of Marriage
Sahih Muslim · كتاب 16 · كتاب النكاح
The Messenger of Allah (ﷺ) went to the privy and when he came back, he was presented with food. It was said to him; Messenger of Allah, wouldn't you perform ablution. He said: Why, am I to say prayer?
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا مُحَمَّدُ بْنُ مُسْلِمٍ الطَّائِفِيُّ، عَنْ عَمْرِو بْنِ دِينَارٍ، عَنْ سَعِيدِ بْنِ الْحُوَيْرِثِ، مَوْلَى آلِ السَّائِبِ أَنَّهُ سَمِعَ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ، قَالَ ذَهَبَ رَسُولُ اللَّهِ صلى الله عليه وسلم إِلَى الْغَائِطِ فَلَمَّا جَاءَ قُدِّمَ لَهُ طَعَامٌ فَقِيلَ يَا رَسُولَ اللَّهِ أَلاَ تَوَضَّأُ ‏.‏ قَالَ ‏
"‏ لِمَ أَلِلصَّلاَةِ ‏"‏ ‏.‏
Reference : Sahih Muslim 829In-book reference : Book 3, Hadith 150