《宋史·本纪·卷二》
二十九日，西川兵马都监张延通、内臣张屿、引进副使王环被丁德裕在太祖面前进谗言，张延通以大不敬获罪被杀，张屿、王环都服杖刑并被流放。
癸卯，西川兵马都监张延通、内臣张屿、引进副使王珏为丁德裕所谮，延通坐不逊诛，屿、珏并杖配。
On the 29th, Zhang Yantong (military governor of Xichuan), Zhang Yu (an imperial eunuch), and Wang Huan (assistant director of the Imperial Secretariat) were slandered in the Taizu's presence by Ding Deyu; Zhang Yantong was found guilty of great disrespect and was killed, while Zhang Yu and Wang Huan were punished with flogging and exile.