Alqamah bin Wa'lah narrates: The Messenger of Allah (peace and blessings be upon him) was asked: What is Saba'? Is it a man, a woman or a land? The Messenger of Allah (peace and blessings be upon him) said: "It was a man to whom ten sons were born; six of them settled in Yemen and four in Syria. Those of Yemen are Madhhij, Kindah, al-Azd, the Ash'ariyyun, Anmar and Himyar. And those of Syria are Lakhm, Judham, Amilah and Ghassan."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 12936