《金史·本纪·卷七》
往昔海陵南伐，太医使祁宰极力劝谏，招致在市上被杀，这在本朝开元以来仅此一人。 
昔海陵南伐，太医使祁宰极谏，至戮于市，此本朝以来一人而已。 
In the past, when Emperor Gaozong of the Song Dynasty attacked the south, Qi Zai, the imperial physician, tried his best to persuade him to stop, which led to his execution in the market. This is the only such case in the Kaiyuan period of this dynasty.