Abu Sa'id al-Khudri (RAA), narrated that the Messenger of Allah (ﷺ) said:
"There are two characteristics which are not combined in a believer; miserliness and bad morals." Related by At-Tirmidhi with a weakness in its chain of narrators.
English reference: Book 16, Hadith 1542
Arabic reference: Book 16, Hadith 1499