Abu Saeed and Marwan were sitting together when a funeral procession passed by them. Abu Saeed stood up.Marwan said, "Sit down."Abu Saeed replied, "I saw the Messenger of Allah ﷺ stand up."So Marwan stood up as well. Waki said, A funeral procession passed by him, and he stood.
حدثنا يحيى ووكيع عن زكريا
كان أبو سعيد ومروان جالسين فمر عليهما بجنازة فقام أبو سعيد فقال مروان اجلس فقال أبو سعيد رأيت رسول الله ﷺ قام فقام مروان وقال وكيع مرت به جنازة فقام
Its isnad is sahih. Amir is Ibn Sharahil, the imam Shaybi. The hadith has already appeared at 11375.