The Prophet ﷺ was brought a horse when he had finished the funeral of Abu Dahdah, so he mounted it while we walked around him.
حدثنا وكيع حدثنا مالك بن مغول عن سماك بن حرب
أن النبي ﷺ أتي بفرس حين انصرف من جنازة أبي الدحداح فركب ونحن حوله نمشي
Its isnad is sahih, mentioned previously at 20726.