In what dynasty did the phrase "Important clothes and clothes travel to the south and eight surnames enter Fujian" happened?

In Fujian, there is a saying that "the clothes and hats traveled south, and the eight surnames entered Fujian".

During the Three Kingdoms, Two Jins, Southern and Northern Dynasties, China has always been in a state of political division and local separatism. At this time, there were frequent wars in the Central Plains, and people were displaced. However, the political situation in Fujian, located in the southeast corner, was relatively stable, so a large number of Central Plains people moved south to Fujian.

Starting from the second year of Yongjia (308), Han people from the Central Plains began to enter Fujian on a large scale. The eight main surnames that entered Fujian were Lin, Chen, Huang, Zheng, Zhan, Qiu, He, and Hu.

The Yiguan Crossing to the South was the first large-scale southward migration of the Han people from the Central Plains, and was also a great integration of the northern Han people and the Fujian people. The "eight surnames" entered central Fujian, and a considerable number of them settled in Fuzhou, causing the population of Jin'an County to more than double. The Wushishan Taoist Well was the residence of the Lin surname at that time, and Huangxiang was the residence of the Huang surname at that time; there are still some of their genealogies.

These immigrants brought Central Plains culture and advanced production technology, which promoted the social and economic development of Fuzhou.