《太平广记·卷四百七十三·昆虫一》
他们屏退了左右，由苻坚亲自执笔起草赦文。有一只大苍蝇突然落于笔尖，听到他们的议论后又飞出去。
坚亲为赦文，有一大苍蝇集于笔端，听而复出。
They dismissed their attendants and King Rui himself took up a pen and drafted an edict. Just then a big fly alighted on the end of the pen. It listened to what they were discussing and then flew out again.