《太平广记·卷二百零八·书三》
太宗采纳了萧翼的这个办法，并按照他提出的条件，给了他几份王羲之父子的杂帖随身带着。
太宗遂召见，翼奏曰：若作公使，义无得理。臣请私行诣彼，须得二王杂帖三数通。
Taizong adopted Xiao Yi's method, and according to the conditions he proposed, gave him several miscellaneous letters from Wang Xizhi and his son to carry with him.