Sayyiduna Abdullah bin Amr (may Allah be pleased with him) reports this as a marfu' hadith: (The Prophet (peace and blessings be upon him) said:) "Reviling a Muslim is like one who stands at the brink of destruction."
Al-Bazzar recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13011
Sayyiduna Amr bin al-Nu'man bin Muqarrin (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) came to a gathering of the Ansar, among whom was a man known for foul speech. The Prophet (peace and blessings be upon him) said: "Reviling a Muslim is wickedness (fusuq), and fighting him (or killing him) is disbelief (kufr)."
Al-Tabarani recorded it, and its narrators are the narrators of the Sahih, except Abu Khalid al-Walibi, who is thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13012
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (39/17)»
Sayyiduna Abdullah bin Mughaffal (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Reviling a Muslim is wickedness (fusuq), and fighting him (or killing him) is disbelief (kufr)."
Al-Tabarani recorded it in al-Mu'jam al-Awsat. Its chain contains Kathir bin Yahya, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13013
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الطبراني فى المعجم الاوسط (738) ، أخرجه المعجم الأوسط للطبراني برقم: 738»
Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Between every two Muslims there is a veil from Allah Almighty. When one of them says something foul to the other, that veil is torn; and when he says, 'O disbeliever!', then one of the two has disbelieved."
Al-Tabarani recorded it, and al-Bazzar recorded it in abridged form. Its chain contains Yazid bin Abi Ziyad, whose narrations are hasan (good), though there is a difference of opinion about this narrator. The remaining narrators of al-Bazzar are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13014
Hadith Gradingمحدثین:إسنادہ حسن
Hadith Takhrij«اخرجه الطبراني فى المعجم الكبير (193/18) ، أخرجه مسند البزار برقم: 1869، وأخرجه المعجم الكبير للطبراني برقم: 10544»
Sayyiduna Abu Dharr al-Ghifari (may Allah be pleased with him) narrates that he heard the Prophet (peace and blessings be upon him) say: "No man accuses another man of wickedness or accuses him of disbelief except that it comes back upon him, if the other is not like that."
Ahmad and al-Bazzar recorded it, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13015
Hadith Gradingمحدثین:إسنادہ صحیح
Hadith Takhrij«اخرجه احمد فى المسند (181/5) ، أخرجه صحيح البخاري برقم: 5698، وأخرجه مسند أحمد برقم: 21061، وأخرجه مسند البزار برقم: 3919»
Sayyiduna Imran bin Husayn (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "When a man says to his brother, 'O disbeliever!', it is like killing him."
Al-Bazzar recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأدب / 13016