The People of Mitanni
The Mitanni dynasty ruled over the northern Euphrates-Tigris region between c. 1475 BCE and c. 1275 BCE. While the Mitanni kings were Indo-Iranians, they used the language of the local people which was at that time a non Indo-Iranian language, Hurrian (and so the land is sometimes referred to in ancient records as the Land of the
Hurrians). The historian Leick writes, "The population of Mitanni was predominantly Hurrian, but the ruling elites were
Indo-European warriors who called themselves Mariannu and who worshipped deities with Vedic names such as Indar, Uruwana, and the collective Devas. This elite was to intermarry with the local population, as the names of their children testify" (120). The capital of Mitanni was Wassukanni, located on the headwaters of the River Habur, a tributary of the Euphrates.
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https://www.ancient.eu/Mitanni/
No they don't.
Actually that's Prophet Isa, and there will only be small number of believers in the Holy Land with the Prophet at that time. And it is some kind of currency and not gold. If it is even true.
No doubt, as God foretold it. It should help boost the imaan of Muslims who are doubtful of Islam and/or God's existence these days.