Abu Huraira reported that Allah's Messenger (ﷺ) said
Kisra (Khusrau king of Persia) would die and Qaisar (Ceasar King of Rome) would die ; there would be no Qaisar after him , but , by the One in Whose Hand is my life , you would spend their treasures in the cause of Allah. This hadith has been transmitted on the authority of Zuhri.