What is the pronunciation of "衣" in "衣锦還乡"?

The pronunciation of "衣" in "衣锦还乡" is yī "衣" was formerly pronounced yì. "Modern Chinese Dictionary, Sixth Edition".

Word: Clothes and Brocade Return to the Countryside

Pronunciation: yī jǐn huán xiāng

Interpretation: Clothes: to wear (衣: the old pronunciation is yì, to wear clothes); Brocade: silk fabric with colorful patterns; Return: to go back; Countryside: hometown. Clothes and brocade return to hometown, anciently refers to after being an official, wearing brocade clothes, returning to hometown to boast to friends and relatives. It refers to returning to one's hometown after one has become rich and powerful in gorgeous clothes. It also means to return to one's hometown in splendid clothes after being rich and powerful. In the old days, it refers to returning to one's hometown after becoming rich and powerful. It contains the meaning of boasting to the countryside.

Example sentence: I hope you will be famous and highly elected, and return to your hometown in fine clothes, so that you can teach people to spread the word. --Ming Gao Zecheng, "Pipa Records - Farewell to Nanpu"