754 — Fadl related to me: Abū Qutayba related to us, from al-Rabīʿ, from Muhammad ibn Sīrīn, who said, “If you say about your brother behind his back something true of him that he dislikes, that is backbiting. If you say something untrue of him, that is slander. It is an injustice to your brother to mention the worst thing you know about him while forgetting what is best in him.”