《宋史·本纪·卷二十一》
二月初一，蔡京再次以太师职衔退休，在京师开封赐给他住宅。
二月戊子朔，蔡京复太师致仕，赐第京师。
On the first of the second month, Cai Jing retired yet again from the post of Grand Preceptor and was granted a residence in the capital Kaifeng.