A red velvet cloth was placed in the grave of the Messenger of Allah ﷺ.
حدثنا يحيى عن شعبة وابن جعفر قال حدثنا شعبة حدثني أبو جمرة
جعل في قبر رسول الله ﷺ قطيفة حمراء
Its isnad is sahih. Tirmidhi related it, 2:153, and his commentator said, Muslim, Nasai, and Ibn Hibban also related it. See 1942, 2284.