It is narrated from Sayyiduna Sa'd bin Abi Waqqas (may Allah be pleased with him): I was sitting in the mosque with two men, and we mentioned Sayyiduna Ali (may Allah be pleased with him) and said some improper words about him. Just then the Messenger of Allah (peace and blessings be upon him) came in a state of intense anger, and signs of displeasure were evident on his (peace and blessings be upon him) blessed face. So I said: "I seek refuge with Allah from the anger of the Messenger of Allah (peace and blessings be upon him)." He (peace and blessings be upon him) said: "What grudge do you have against me? Whoever hurts Ali has indeed hurt me," and he (peace and blessings be upon him) repeated these words three times. The narrator says: After this incident, whenever someone came to me and said that Ali (may Allah be pleased with him) was taking a dig at you, saying: "Beware of the trial of this little flat-nosed one (al-Ukhaynis)," I would ask: "Did he name me?" They would reply: "No." Then I would say: "Surely there are many flat-nosed people. I seek refuge with Allah from ever hurting the Messenger of Allah (peace and blessings be upon him) (again) after having heard what I myself heard from his (peace and blessings be upon him) blessed tongue."
Imam Ibn Abi Umar said that Marwan al-Fazari narrated this hadith to us from Qanan bin Abdullah, from Mus'ab bin Sa'd, from his father (Sa'd (may Allah be pleased with him)).
Imam al-Bazzar said that Ahmad bin Aban narrated the hadith to us from Marwan with this same chain, and he said: We do not know this hadith to be narrated from Sayyiduna Sa'd (may Allah be pleased with him) by any route other than this chain.
Imam Abu Ya'la said that Mahmud bin Khidash narrated the hadith to us from Marwan with this same chain.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب المناقب / 3938
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده حسن » «أخرجه الأحاديث المختارة للضياء برقم: 1070، وأخرجه مسند أبي يعلى برقم: 770، وأخرجه مسند البزار برقم: 1166، وأخرجه المطالب العالية لابن حجر برقم: 3938 / 3»