The Book of Asceticism · Hadith 69 (#Ḥadīth #10)
Chapter 3 | On Good Character, Kindness and Anger
حماد بن عيسى عن ربعي عن الفضيل عن أبي عبد الله عليه السلام قال: جاء رجل إلى النبي صلى الله عليه وآله فقال يا رسول الله: أي الناس أكمل ايمانا قال: أحسنهم خلقا.
10.Ḥammād ibn ʿĪsā narrated from Ribʿī, from al-Fuḍayl, from Abū ʿAbdillāh who said, “A man came to the Prophet (ṣ) and said, ‘O Messenger of Allah, who among the people have the most perfect faith?’ He said, ‘Those who have the best character.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).