Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Allah Almighty will fill your hands with non-Arabs; they will stand firm and endure, they will not flee, they will strike your necks and consume your fay' (public wealth)."
Tabarani recorded it in al-Mu'jam al-Awsat, and al-Bazzar recorded something similar. Its chain contains Layth bin Abi Sulaym, who is a mudallis. (Allamah Haythami says:) I say: Hadiths of this kind will come in Kitab al-Fitan, if Allah wills.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجهاد / 9576
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه البزار فى المسند (3363) ، أخرجه المعجم الأوسط للطبراني برقم: 5211»