《金史·列传·卷六》
世祖于是去见杯乃，隔着鳖剌水对他说道 ：不歌束已经告发纵火的欢都等人，我当然会按约定办事。
世祖乃往见杯乃，隔鳖刺水而与之言曰： 不歌束既告纵火由欢都等，谨当如约。
Sezu then went to see Bei, and said to him over the Biela River: Bugsong has reported that Huandu and others set the fire. Of course I will do what I promised.