Hadithcore
Mishkat al-Masabih, 325

Umm Salama said, “I offered the Prophet (ﷺ) a roasted flank and he ate some of it, then rose to pray without performing ablution.” Ahmad transmitted it.

وَعَن أم سَلمَة أَنَّهَا قَالَتْ: قَرَّبْتُ إِلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ جَنْبًا مَشْوِيًّا فَأَكَلَ مِنْهُ ثُمَّ قَامَ إِلَى الصَّلَاةِ وَلَمْ يَتَوَضَّأْ. رَوَاهُ أَحْمَدُ

References1 variant
In-Book Reference
Book 3, Hadith 39