Narrated Samurah bin Jundab:
that the Messenger of Allah (ﷺ) said: "Sam was the father of Arabs, Yafith was the father of Romans, and Ham was the father of Ethiopians." (ID)
English reference (ID): Vol. 1, Book 46, Hadith 3931 (ID)
Arabic reference (ID): Book 49, Hadith 4310 (ID)