《三国志·吴书·张严程阚薛传》
赤乌五年，阚泽被任为太子太傅，依旧兼领中书令。
赤乌五年，拜太子太傅，领中书如故。
In the fifth year of the Chiwu period, Kan Ze became the Grand Tutor for the Crown Prince, while still concurringly holding the office of Minister of the Imperial Secretariat.