《旧唐书·列传·卷十三》
萧瑀就郑重地主动应声，要求带头进入佛门，我立即答应了他，很快他又不去。瞬息之间，七说八说，在宫殿上，出尔反尔。
一回一惑，在于瞬息之间；自可自否，变于帷扆之所。
Xiao Yu solemnly took the initiative to answer, asking to take the lead in entering Buddhism. I immediately agreed to him, but he didn't go soon. In an instant, he talked about seven or eight things and changed his mind in the palace.