It was reported that Ibn 'Abbas said "I witnessed (that) the Messenger of Allah ﷺ ate bread and meat, then stood for prayer and did not perform ablution. " (Using translation from Nasāʾī 184)
شَهِدْتُ رَسُولَ اللهِ ﷺ «أَكَلَ خُبْزًا وَلَحْمًا ثُمَّ قَامَ إِلَى الصَّلَاةِ وَلَمْ يَتَوَضَّأْ»