《旧唐书·列传·卷二十二》
当时世南年已衰老，上表请求辞官，太宗下诏不许他辞官，升任他为太子右庶子，世南坚决推辞不受职，被授任为秘书少监。
时世南年已衰老，抗表乞骸骨，诏不许。迁太子右庶子，固辞不拜，除秘书少监。
By then, Shinan was already old and he submitted a memorial asking to resign from his official post. Taizong issued an imperial decree to prohibit him from resigning and promoted him to the position of Deputy Junior Guardian of the Crown Prince. Shinan resolutely declined to accept the post, and was instead conferred the position of Junior Supervisor of the Secretariat.