《明史·列传·卷八十六》
万达屡次上书请修建防护墙，认为从大同东路阳和口到宣府西阳河，修墙需要花费国库银二十九万两。
屡疏请修筑边墙，议自大同东路阳和口至宣府西阳河，须帑银二十九万。
Wanda repeatedly submitted petitions to build a protective wall, believing that, from Yanghekou in Datong East Road to Xiyanhe in Xuanfu, building the wall would cost twenty-nine thousand taels of silver from the Treasury.