I saw the Prophet ﷺ eat some meat, or a bone with meat on it, and he did not rinse his mouth nor touch water, then he prayed.
حدثنا يحيى بن سعيد عن هشام بن عروة قال حدثني الزهري
رأيت النبي ﷺ أكل لحما أو عرقا فلم يمضمض ولم يمس ماء فصلى
Its isnad is sahih. He named "so-and-so" as Jafar in 17182, so refer to that. In the following one, he also named him Jafar.