Sayyiduna Mu'awiyah bin Haydah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) addressed them in a sermon and said: "How long will you remain troubled about mentioning the wicked person? Expose him, so that people may beware of him."
Tabarani recorded it in all three (of his Mu'jams). The chain of al-Mu'jam al-Awsat and al-Mu'jam al-Saghir is hasan (good), and its narrators have been declared trustworthy; there is disagreement about some of its narrators, but of a kind that does no harm.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب العلم / 662
Hadith Gradingمحدثین:إسنادہ حسن، اس کے رواۃ ثقہ
Hadith Takhrij«اخرجه الامام الطبراني فى معجمه الكبير 418/19 اخرجه الامام الطبراني فى معجمه الاوسط 4372 اخرجه الامام الطبراني فى معجمه الصغير 215/1 ، أخرجه المعجم الصغير للطبراني برقم: 571»
Sayyiduna Mu'awiyah bin Haydah (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "There is no backbiting (ghibah) regarding an open sinner (fasiq)."
Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, al-Ala' bin Bishr, whom al-Azdi declared da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب العلم / 663
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الامام الطبراني فى معجمه الكبير 418/19»
Sayyiduna Abdullah bin Buraydah (may Allah be pleased with him) narrates: Once Sayyiduna Umar (may Allah be pleased with him) was seated in a place where the Prophet (peace and blessings be upon him) used to sit, a place by which funeral processions used to pass. The narrator says: People passed by with a funeral and praised (the deceased). Sayyiduna Umar (may Allah be pleased with him) said: "It has become due." Then people passed by with another funeral and said: "This man was the greatest liar." Sayyiduna Umar (may Allah be pleased with him) said: "The greatest liar among people is the one who attributes lies to Allah Almighty, and after them those who lie about the soul within their body (that is, who relate false dreams)." Then the narrator mentioned the full hadith.
Imam Ahmad recorded it; its chain contains a narrator, Umar bin al-Walid al-Shanni, whom Imam al-Nasa'i (may Allah have mercy on him) and Yahya al-Qattan declared da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب العلم / 664
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الامام احمد فى مسنده 54/1 اورده المؤلف فى زوائد المسند 230»
Hammad bin Zayd narrates: I met Salamah bin Alqamah, and he narrated this report to me; then he retracted it, and then he said: "When you intend to make your companion appear a liar, prompt him (with it)."
Abu Ya'la recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب العلم / 665
Hadith Gradingمحدثین:إسنادہ صحیح۔
Hadith Takhrij«اخرجه الامام ابو يعلى فى مسنده 2637 اورده المؤلف فى المقصد العلى 77»