《新五代史·列传·杂传第二十七》
第二年，在承天军和唐庄宗相会，举杯祝寿，唐庄宗因王镕是父亲的朋友，尊敬礼待他，饮酒尽兴后为王镕唱歌，拔出佩刀割断衣襟发誓，答应把女儿嫁给王镕的儿子王昭诲。
明年，会庄宗于承天军，奉觞为寿，庄宗以镕父友，尊礼之，酒酣为镕歌，拔佩刀断衣而盟，许以女妻镕子昭诲。
The following year, at a meeting with Chengtian army and Tang Zhuangzong, he raised a cup to celebrate his birthday. As Wang Rong was his father's friend, Tang Zhuangzong treated him with respect and courtesy. After drinking to his heart's content, he sang a song to Wang Rong, drew out his saber and cut off his lapel, swearing to marry his daughter to Wang Rong's son Wang Zhaohui.