《资治通鉴·晋纪·晋纪十九》
都亭肃侯庾翼的背疽发作，上表乞请儿子庾爰之行辅国将军职、荆州刺史，把后事委托给他。
都亭肃侯庾翼疽发于背。
Dutingsuhou Yu Yi's carbuncle flared up, and he presented a memorial requesting his son Yu Yuan to be the General of Auxiliary State and the Governor of Jingzhou, and entrusted him with the aftermath.