《资治通鉴·齐纪·齐纪五》
裴叔业害怕了，派遣于瑶之去说服萧子懋，瑶之对子懋讲： 你现在如果能够主动放弃，回到京城去，一定不会有什么担心之处，正好可以做一个闲散之官，仍然不失富贵荣华呀。 
叔业畏之，遣于瑶之说子懋曰： 今还都必无过忧，正当作散官，不失富贵也。 
Pei Shuxie was frightened and sent Yu Yaoyu to persuade Xiao Ziyu. Yaoyu said to Ziyu: If you can take the initiative to give up and return to the capital, there will be nothing to worry about. You can just be an idle official and still live a life of wealth and glory.