《宋书·本纪·卷六》
大明七年春正月五日，下诏说： 春天打猎，始自周朝；有关记载，见于鲁国史书。
七年春正月癸未，诏曰： 春搜之礼，著自周令；讲事之语，书于鲁史。
On January 5, the first month of spring in the seventh year of the Daming era, an imperial edict was issued, stating: Spring hunting began in the Zhou Dynasty; related records can be found in the history books of the State of Lu.