Sunan Abu Dawud
4432
Daif+2

Abu Nadrah said:A man came to Prophet (ﷺ). He then mentioned a similar tradition but not completely. This version has: People began to speak ill of him but he (the Prophet) forbade them. Then they began to ask forgiveness from him, but he forbade them by saying. He is a man who had committed a sin. Allah will call him to account himself

DaifAl-Albani
DaifMuhammad Muhyi Al-Din Abdul Hamid