佛祖歷代通載 17.78

17.78

（戊寅）　蜀衍（字化源。建之第十一子。母曰徐賢妃。以寵得立為太子。建亡即位。荒淫自恣。委政宦者。改大光。立六年。唐郭崇韜伐之）。

(Wuyin) Yan of Shu (courtesy name Huayuan, the eleventh son of Jian. His mother was Worthy Consort Xu; because of favoritism he was installed as crown prince. When Jian died, he ascended the throne. He was dissolute and self-indulgent, delegating the government to eunuchs. He changed the era to Daguang. He reigned for six years, when Guo Chongtao of Tang attacked him).