Muhammad bin al-Mutawakkil al-Asqalani told us that Abdul-Razzaq narrated to them, that Bishr bin Rafi reported from Yahya bin Abu Kathir, from Abu Salama, from Abu Hurairah, both raising it as a marfu hadith. He said, the Messenger of Allah ﷺ said, "The believer is naturally trusting and noble, while the wicked person is deceitful and base."
حدثنا نصر بن علي قال أخبرني أبو أحمد حدثنا سفيان عن الحجاج بن فرافصة عن رجل عن أبي سلمة
ح و حدثنا محمد بن المتوكل العسقلاني حدثنا عبد الرزاق أخبرنا بشر بن رافع عن يحيى بن أبي كثير عن أبي سلمة عن أبي هريرة رفعاه جميعا قال قال رسول الله ﷺ المؤمن غر كريم والفاجر خب لئيم
Source. [Its isnad is daif.] Tirmidhi narrated it in the book of Righteousness and Maintaining Ties, chapter on what has been narrated about stinginess, hadith no. 1964, from the hadith of Abdul-Razzaq with this wording, and its sanad is daif.The unnamed man is Yahya bin Abu Kathir, Mushkil Athar 4/202. The ghirr in the speech of the Arabs is one who has no hidden fault, no inner nature contrary to his outward appearance, while the fajir is one whose outward appearance is contrary to his inner nature, as Tahawi said.The unnamed man is unknown, and Yahya bin Abu Kathir is a mudallis, and Bishr bin Rafi is daif.