(83) بَابُ سُوءِ الْمَلَكَةِ
Abu'd-Darda' used to say to people. "We know you better than theveterinarian knows his animals. We recognise the best of you from the worstof you. The best of you is the one whose good is hoped for and the onewhose evil you are safe from. As for the worst of you, that is the personwhose good is not hoped for and whose evil you are not safe from and hedoes not free slaves."
Reference: Al-Adab Al-Mufrad 159
In-book reference: Book 9, Hadith 4
English translation: Book 9, Hadith 159