《北史·列传·卷七十七》
刘晖闭口一无所答，张胄玄能解决的有五十四个，由此提升为员外散骑侍郎，兼任太史令，赏赐物品千段。
晖杜口一无所答，胄玄通者五十四焉。由是擢拜员外散骑侍郎，兼太史令，赐物千段。
Liu Hui was silent and did not answer, while Zhang Zouxuan was able to solve 54 of them, so he was promoted to an external minister and concurrently served as the Imperial Astrologer, and was also awarded one thousand pieces of cloth.