Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) reports that the Prophet (peace and blessings be upon him) said: "Do not keep staring at those afflicted with leprosy, and when you speak with them, let there be the length of a spear between you and them."
Abdullah bin Ahmad recorded it. Its chain contains al-Faraj bin Fadalah, whom Imam Ahmad and others declared thiqah (trustworthy), while Imam al-Nasa'i (may Allah have mercy on him) and others graded him da'if (weak). The rest of its narrators are thiqat (trustworthy), provided that no narrator has dropped out of its chain.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الطب / 8385
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«اخرجه احمد فى المسند (581) ، أخرجه مسند أحمد برقم: 582، وأخرجه المعجم الكبير للطبراني برقم: 2897»