Abu Salamah reports from Sayyiduna Abu Hurayrah (may Allah be pleased with him) (the narrator says: as far as I think) this saying of the Prophet (peace and blessings be upon him): "One millah (meaning religion) shall not inherit from another millah, and the testimony of one millah against another millah is not valid, except for my Ummah; their testimony is valid against all others."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains Umar bin Rashid, who is da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأحكام / 7043
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«أخرجه المعجم الأوسط للطبراني برقم: 5430»