Gevurot Meyruach Hakodesh 15:8-9

And the One who has da'as of levavot, HASHEM, bore solemn edut and stood as their witness, having given the non-Jews the Ruach Hakodesh just as HASHEM did also to us Jews. And in making tehorot their levavot by emunah, in this respect HASHEM did not differentiate between us Jews and those non-Jews.