Jami` at-Tirmidhi, Book 47, Hadith 3538 (In-Book) ⓘ
Narrated Samurah: that the Prophet said: "Sam was the father of Arabs, Ham the father of the Ethiopians, and Yafith the father of the Romans."
حَدَّثَنَا بِشْرُ بْنُ مُعَاذٍ الْعَقَدِيُّ، حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، عَنْ سَعِيدِ بْنِ أَبِي عَرُوبَةَ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ سَمُرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " سَامٌ أَبُو الْعَرَبِ وَحَامٌ أَبُو الْحَبَشِ وَيَافِثُ أَبُو الرُّومِ " .
also referenced under: Hadith 3231 (Reference) & Volume 5, Book 44, Hadith 3231 (DarusSalam)