《宋史·列传·卷一百四十二》
有奸细前来报告，前一天金军杀死白马、黑马以祭上天，与众将士约定，第二天渡过长江，早晨在玉麟堂开饭，首先渡过长江的重奖黄金一两。
谍者言，前一日刑白黑马祭天，与众盟，以明日济江，晨炊玉麟堂，先济者予黄金一两。
A spy came to report that the day before the Jurchen army had killed a white horse and a black horse to sacrifice to the heavens and had agreed with all the generals that the next day they would cross the Yangtze River. They would have dinner in Yulin Hall in the morning, and those who crossed the Yangtze River first would be rewarded with one tael of gold.