Why do Arabs stay in Quanzhou?

During the Southern Song Dynasty, overseas trade was frequent, and there were many Arabs and other foreigners in China.

Among them, the Pu family moved from Arabia to Quanzhou, that is, the Pu Shougeng family. Pu Shougeng's ancestors were businessmen who came to the East to do business. At first, they lived in Viet Nam, but later because of their trade business, they settled in China.