The Messenger of Allah ﷺ said, "Whoever takes charge of preparing his brother's body should shroud him well."
حدثنا حسين بن محمد حدثنا جرير يعني ابن حازم عن أيوب عن أبي الزبير
قال رسول الله ﷺ من ولي أخاه فليحسن كفنه
Its chain of transmission is sahih. Ayub is Sakhtiyani, and the hadith has already appeared at 14702.