The Messenger of Allah ﷺ said to me, "Come close to me." He then passed his hand over my head and beard and said, "Allah, make him handsome and let his beauty endure."He lived to be over a hundred years old, yet there was hardly any white in his head or beard except for a slight trace. His face remained smooth and unwrinkled until the day he died.
حدثنا حرمي بن عمارة حدثنا عزرة بن ثابت الأنصاري حدثنا علباء بن أحمر حدثنا
قال لي رسول الله ﷺ ادن مني قال فمسح بيده على رأسه ولحيته قال ثم قال اللهم جمله وأدم جماله قال فلقد بلغ بضعا ومائة سنة وما في رأسه ولحيته بياض إلا نبذ يسير ولقد كان منبسط الوجه ولم ينقبض وجهه حتى مات
Its isnad is sahih, and it is found in Tirmidhi 5/594, no. 3629, where he said, hasan gharib.